Version 3.00 Revision AMay 2006
AgGPS® Autopilot™
Automated Steering SystemTroubleshooting Guide
Agriculture Contact InformationTrimble Agriculture Division10355 Westmoor DrSuite #100Westminster, CO 80021USA800-865-7438 (US toll free)+1-913-495-2700 Phone+1-913-495-2750 [email protected]
Copyright and Trademarks© 1999–2006, Trimble Navigation Limited. All rights reserved. Trimble, the Globe & Triangle logo, AgGPS, and EZ-Guide are trademarks of Trimble Navigation Limited, registered in the United States Patent and Trademark Office and in other countries. Autopilot, AutoSense, and FieldManager are trademarks of Trimble Navigation Limited.All other trademarks are the property of their respective owners.
Release NoticeThis is the May 2006 release (Revision A) of the AgGPS Autopilot Automated Steering System Troubleshooting Guide. It applies to version 3.00 of the AgGPS Autopilot automated steering system.
The following limited warranties give you specific legal rights. You may have others, which vary from state/jurisdiction to state/jurisdiction.
Product Limited WarrantyTrimble warrants that this Trimble product and its internal components (the “Product”) shall be free from defects in materials and workmanship and will substantially conform to Trimble’s applicable published specifications for the Product for a period of one (1) year, starting from the earlier of (i) the date of installation, or (ii) six (6) months from the date of product shipment from Trimble. This warranty applies only to the Product if installed by Trimble or a distributor authorized by Trimble to perform Product installation services.
Software Components and Enhancements All Product software components (sometimes hereinafter also referred to as “Software”) are licensed and not sold. Any Software accompanied by a separate End User License Agreement (“EULA”) shall be governed by the terms, conditions, restrictions and limited warranty terms of such EULA notwithstanding the preceding paragraph. During the limited warranty period you will be entitled to receive, at no additional charge, such Fix Updates and Minor Updates to the Product software as Trimble may develop for general release, subject to the procedures for delivery to purchasers of Trimble products generally. If you have purchased the Product from an authorized Trimble distributor rather than from Trimble directly, Trimble may, at its option, forward the software Fix Update or Minor Update to the Trimble distributor for final distribution to you. Major Upgrades, new products, or substantially new software releases, as identified by Trimble are expressly excused from this enhancement process and limited warranty. Receipt of software updates shall not serve to extend the limited warranty period.For purposes of this warranty the following definitions shall apply: (1) “Fix Update” means an error correction or other update created to fix a previous software version that does not substantially conform to its published specifications; (2) “Minor Update” occurs when enhancements are made to current features in a software program; and (3) “Major Upgrade” occurs when significant new features are added to software, or when a new product containing new features replaces the further development of a current product line. Trimble reserves the right to determine, in its sole discretion, what constitutes a significant new feature and Major Upgrade.
Warranty RemediesTrimble’s sole liability and your exclusive remedy under the warranties set forth above shall be, at Trimble’s option, to repair or replace any Product that fails to conform to such warranty (“Nonconforming Product”), and/or issue a cash refund up to the purchase price paid by you for any such Nonconforming Product, excluding costs of installation, upon your return of the Nonconforming Product to Trimble in accordance with Trimble’s standard return material authorization process. Such remedy may include reimbursement of the cost of repairs for damage to third-party equipment onto which the Product is installed, if such damage is found to be directly caused by the Product as reasonably determined by Trimble following a root cause analysis.
Warranty Exclusions and DisclaimerThese warranties shall be applied only in the event and to the extent that (i) the Products and Software are properly and correctly installed, configured, interfaced, maintained, stored, and operated in accordance with Trimble's relevant operator's manual and specifications, and; (ii) the Products and Software are not modified or misused. The preceding warranties shall not apply to, and Trimble shall not be responsible for defects or performance problems resulting from (i) the combination or utilization of the Product or Software with hardware or software products, information, data, systems, interfaces or devices not made, supplied or specified by Trimble; (ii) the operation of the Product or Software under any specification other than, or in addition to, Trimble's standard specifications for its products; (iii) the unauthorized,
installation, modification, or use of the Product or Software; (iv) damage caused by accident, lightning or other electrical discharge, fresh or salt water immersion or spray; or (v) normal wear and tear on consumable parts (e.g., batteries). Trimble does not warrant or guarantee the results obtained through the use of the Product.
THE WARRANTIES ABOVE STATE TRIMBLE'S ENTIRE LIABILITY, AND YOUR EXCLUSIVE REMEDIES, RELATING TO PERFORMANCE OF THE PRODUCTS AND SOFTWARE. EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, THE PRODUCTS, SOFTWARE, AND ACCOMPANYING DOCUMENTATION AND MATERIALS ARE PROVIDED “AS-IS” AND WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND BY EITHER TRIMBLE NAVIGATION LIMITED OR ANYONE WHO HAS BEEN INVOLVED IN ITS CREATION, PRODUCTION, INSTALLATION, OR DISTRIBUTION INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NONINFRINGEMENT. THE STATED EXPRESS WARRANTIES ARE IN LIEU OF ALL OBLIGATIONS OR LIABILITIES ON THE PART OF TRIMBLE ARISING OUT OF, OR IN CONNECTION WITH, ANY PRODUCTS OR SOFTWARE. SOME STATES AND JURISDICTIONS DO NOT ALLOW LIMITATIONS ON DURATION OR THE EXCLUSION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
TRIMBLE NAVIGATION LIMITED IS NOT RESPONSIBLE FOR THE OPERATION OR FAILURE OF OPERATION OF GPS SATELLITES OR THE AVAILABILITY OF GPS SATELLITE SIGNALS.
Limitation of LiabilityTRIMBLE’S ENTIRE LIABILITY UNDER ANY PROVISION HEREIN SHALL BE LIMITED TO THE AMOUNT PAID BY YOU FOR THE PRODUCT OR SOFTWARE LICENSE. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL TRIMBLE OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES WHATSOEVER UNDER ANY CIRCUMSTANCE OR LEGAL THEORY RELATING IN ANY WAY TO THE PRODUCTS, SOFTWARE AND ACCOMPANYING DOCUMENTATION AND MATERIALS, (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS), REGARDLESS WHETHER TRIMBLE HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH LOSS AND REGARDLESS OF THE COURSE OF DEALING WHICH DEVELOPS OR HAS DEVELOPED BETWEEN YOU AND TRIMBLE. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
NOTE: THE ABOVE LIMITED WARRANTY PROVISIONS MAY NOT APPLY TO PRODUCTS OR SOFTWARE PURCHASED IN THE EUROPEAN UNION. PLEASE CONTACT YOUR TRIMBLE DEALER FOR APPLICABLE WARRANTY INFORMATION.
NoticesClass B Statement – Notice to Users. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:– Reorient or relocate the receiving antenna.– Increase the separation between the equipment and the receiver.– Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.– Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your authority to operate this equipment under Federal Communications Commission rules.
Notice to Our European Union CustomersFor product recycling instructions and more information, please go to:www.trimble.com/ev.shtmlRecycling in Europe: To recycle Trimble WEEE, Call+31 497 53 2430, and ask for the "WEEE Associate"OrMail a request for recycling instructions to:Trimble Europe BVc/o Menlo Worldwide LogisticsMeerheide 455521 DZ Eersel, NL
Contents ii
1 AgGPS Autopilot System Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Cable service kit for the AgGPS NavController II navigation controller . . . . . . . . . . . . . . . . . . . 2
Hydraulic test kit for the AgGPS Autopilot system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 AgGPS Autopilot System Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . 9LED states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Autopilot system fault code 1 "FE Send Message" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Autopilot system fault code 2 "FE Task Init." . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Autopilot system fault code 3 "FE Go Trap" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Autopilot system fault code 4 "A/D Scan Timeout" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Autopilot system fault code 5 "A/D Scan Overrun". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Autopilot system fault code 6 "A/D Data Not Ready" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Autopilot system fault code 7 "A/D Chan Overrun" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Autopilot system fault code 8 "Vpp Jumpered" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Autopilot system fault code 9 "Battery Bad" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Autopilot system fault code 11 "SP Open Failed" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Autopilot system fault code 12 "Matrix Inv. Failed" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Autopilot system fault code 13 "MATHERR Exception". . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Autopilot system fault code 14 "MATHERRF Exception" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Autopilot system fault code 15 "Fatal Error Reboot". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Autopilot system fault code 16 "App Undefined ISR" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Autopilot system fault code 17 "TPU Undefined ISR" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Autopilot system fault code 18 "MIOS1 Undefined ISR" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Autopilot system fault code 19 "QADC Undefined ISR". . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Autopilot system fault code 21 "Uninit. App Assert". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Autopilot system fault code 22 "Acc X Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Autopilot system fault code 23 "Acc X Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Autopilot system fault code 24 "Acc Y Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Autopilot system fault code 25 "Acc Y Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Autopilot system fault code 26 "Acc Z Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Autopilot system fault code 27 "Acc Z Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Autopilot system fault code 28 "Gyro X Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Autopilot system fault code 29 "Gyro X Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Autopilot system fault code 30 "Gyro Y Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Autopilot system fault code 31 "Gyro Y Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Autopilot system fault code 32 "Gyro Z Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Autopilot system fault code 33 "Gyro Z Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Autopilot system fault code 34 "Heater Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Autopilot system fault code 35 "Heater Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Autopilot system fault code 36 "VRef Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
AgGPS Autopilot Automated Steering System Troubleshooting Guide iii
Autopilot system fault code 37 "VRef Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Autopilot system fault code 39 "Steering Overvolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Autopilot system fault code 40 "Steering Undervolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Autopilot system fault code 41 "Man Ovrd Overvolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Autopilot system fault code 42 "Man Ovrd Undervolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Autopilot system fault code 43 "Gear Lev Overvolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Autopilot system fault code 44 "Gear Lev Undervolt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Autopilot system fault code 45 "RPM Too Low" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Autopilot system fault code 46 "Valve Coil Short" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Autopilot system fault code 47 "Valve Coil Imax" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Autopilot system fault code 48 "MOSFET Short" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Autopilot system fault code 49 "Coil Short to GND". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Autopilot system fault code 50 "Coil Shorted" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Autopilot system fault code 51 "Valve Pressure Fault" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Autopilot system fault code 52 "Sum Pressure Max" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Autopilot system fault code 53 "Sum Pressure Min" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Autopilot system fault code 54 "SafeMCU Prog. Error" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Autopilot system fault code 55 "SafeMCU No Stack" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Autopilot system fault code 56 "SafeMCU Msg Timeout" . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Autopilot system fault code 57 "Angle Out of Bounds" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Autopilot system fault code 58 "Steering Unsafe" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Autopilot system fault code 59 "MCU2 Vel. Unsafe" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Autopilot system fault code 62 “Missing 1PPS” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Autopilot system fault code 64 "Output Balance Bad" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Autopilot system fault code 65 "Output Bal. OverVol" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Autopilot system fault code 66 "Output Bal. UnderV". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Autopilot system fault code 67 "Steering In Fault" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Autopilot system fault code 70 "Test Build Expired". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Autopilot system fault code 71 "Top FET Sense Err". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Autopilot system fault code 72 "Left Pressure OvrVt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Autopilot system fault code 73 "Left Pressure UndVt" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Autopilot system fault code 74 "Right Pressure OvrV" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Autopilot system fault code 75 "Right Pressure UndV" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Autopilot system fault code 76 "VT Assert Failure" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Autopilot system fault code 77 "VT Object Pool Buffer Overflow" . . . . . . . . . . . . . . . . . . . . . . 85
Autopilot system fault code 78 "VT Comms Error" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Autopilot system fault code 79 "VT Watchdog Timeout" . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Autopilot system fault code 80 "PP Task Assert Failure" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Autopilot system fault code 81 "CAN-VT Assert Failure". . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Autopilot system fault code 82 "CN Task Assert Failure" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Autopilot system fault code 83 "Steering Fault Overvoltage" . . . . . . . . . . . . . . . . . . . . . . . . . 91
Autopilot system fault code 84 "Steering Fault Undervoltage" . . . . . . . . . . . . . . . . . . . . . . . . 92
Autopilot system fault code 85 "Coil Short Slew Detected" . . . . . . . . . . . . . . . . . . . . . . . . . . 93
iv AgGPS Autopilot Automated Steering System Troubleshooting Guide
Autopilot system fault code 86 "Battery Voltage Low" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Autopilot system fault code 87 "Battery Voltage High" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Autopilot system fault code 88 "Temperature High" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Autopilot system fault code 89 "Temperature Low" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Autopilot system fault code 90 "Fet or coil open". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Autopilot system fault code 91 "Valve Wiring Fault". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Autopilot system fault code 96 "Low side short to battery" . . . . . . . . . . . . . . . . . . . . . . . . . 100
Autopilot system fault code 97 "Coil overcurrent" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Autopilot system fault code 98 "Internal Fault Hi Side" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Autopilot system fault code 99 "Internal Measurement Fault" . . . . . . . . . . . . . . . . . . . . . . . 103
Autopilot system fault code 106 "Internal Fault Low Side". . . . . . . . . . . . . . . . . . . . . . . . . . 104
Autopilot system fault code 107 "FE SendMsg Too Big" . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Autopilot system fault code 108 "CAN Sensor OPS Message Timeout" . . . . . . . . . . . . . . . . . . 106
Autopilot system fault code 109 "CAN Sensor OPS Message Error" . . . . . . . . . . . . . . . . . . . . 107
Autopilot system fault code 110 "CAN Autoguidance Message Timeout" . . . . . . . . . . . . . . . . 108
Autopilot system fault code 111 "CAN Autoguidance Message Error (Vehicle Direction)" . . . . . . 109
Autopilot system fault code 112 "CAN Autoguidance Message Error (Isolation Valve Invalid)". . . 110
Autopilot system fault code 113 "CAN Autoguidance Message Error
(Isolation Valve Inconsistent)" . . . . . . . . . . . . . . . . . . . . . . . 111
Autopilot system fault code 114 "AutoTrac Quadrature Steering Override Not Detected" . . . . . . 112
Autopilot system fault code 115 "IMU Orientation Wrong" . . . . . . . . . . . . . . . . . . . . . . . . . 113
Autopilot system fault code 116 "Wheel Speed Sensor Input Is Not Detected" . . . . . . . . . . . . . 114
Autopilot system fault code 117 "AutoTrac Quadrature Steering Backup Not Detected" . . . . . . . 115
Autopilot system fault code 118 "Steering Status Report Packet Not Detected" . . . . . . . . . . . . 116
Autopilot system fault code 119 "Steering Override Parameter Error" . . . . . . . . . . . . . . . . . . 117
Autopilot system fault code 120 "Steering Override Parameter Not Available". . . . . . . . . . . . . 118
Autopilot system fault code 121 "Gear Lever Parameter Error" . . . . . . . . . . . . . . . . . . . . . . . 119
Autopilot system fault code 122 "Gear Lever Parameter Not Available" . . . . . . . . . . . . . . . . . 120
Autopilot system fault code 123 "Gear Lever Parameter Unknown" . . . . . . . . . . . . . . . . . . . . 121
Autopilot system fault code 124 "Road Lockout Switch Parameter Error" . . . . . . . . . . . . . . . . 122
Autopilot system fault code 125 "Gear Lever Parameter Not Available" . . . . . . . . . . . . . . . . . 123
Autopilot system fault code 126 "Steering Command Reset Required Parameter Error" . . . . . . . 124
Autopilot system fault code 127 "Steering Command Reset Required Parameter Not Available". . 125
Autopilot system fault code 128 "Steering Subsystem Ready Parameter Error" . . . . . . . . . . . . . 126
Autopilot system fault code 129 "Steering Subsystem Ready Parameter Not Available" . . . . . . . 127
Autopilot system fault code 130 "CAN Communication Status Parameter Error" . . . . . . . . . . . 128
Autopilot system fault code 131 "CAN Communication Status Parameter Not Available" . . . . . . 129
Autopilot system fault code 151 "Inching Pedal Depressed Parameter Error" . . . . . . . . . . . . . . 130
Autopilot system fault code 152 "Inching Pedal Depressed Parameter Not Available" . . . . . . . . 131
Autopilot system fault code 156 "Noisy 1PPS Signal" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Autopilot system fault code 157 "TAP Bounds Check Failed" . . . . . . . . . . . . . . . . . . . . . . . . 133
AgGPS Autopilot Automated Steering System Troubleshooting Guide v
3 AgGPS Autopilot System Harness Schematics . . . . . . . . . . . . . . . . . . 135Autopilot system cable architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Main harness: P/N 54601 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Auxiliary harness: P/N 54602 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
SPX/STX/FLX power harness: P/N 54603 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Challenger steering interface harness: P/N 54605 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
MX/TG power harness: P/N 54607 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
AgGPS 252 receiver harness: P/N 54608 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
21A secondary display harness: P/N 54609 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
AgGPS 110/114/132 receiver harness: P/N 54610 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
AgGPS 170 Field Computer harness: P/N 54611 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
EZ-Guide Plus Lightbar: P/N 54612 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
LBO harness: P/N 54614 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Generic interface harness: P/N 54615. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Steering angle sensor harness: P/N 54616 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Electro hydraulic valve harness: P/N 54617 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Pressure transducer harness: P/N 54618 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
John Deere 8000 series interface harness: P/N 54619 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Common interface harness: P/N 54620. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
MX Magnum interface harness: P/N 54621 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
TG interface harness: P/N 54622. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
STX/TJ interface harness: P/N 54623 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
John Deere tracked interface harness: P/N 54624 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
SPX interface harness: P/N 54625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
John Deere 47xx interface harness: P/N 54628 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Terra-Gator interface harness: P/N 54629 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
John Deere/Cat MT power interface harness: P/N 54630 . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Gear lever interface harness: P/N 54632 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Challenger MT interface harness: P/N 54636 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
SPX Power Adapter: P/N 54947 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
AgGPS 252 data harness: P/N 55224. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Case IH 2388 interface harness: P/N 55650 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
John Deere combine interface harness: P/N 55651 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Challenger 35-55 interface harness: P/N 55654 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
John Deere 8020 AutoTrac interface harness: P/N 56133. . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Challenger 65-95 Interface Cable: P/N 56190 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Hybrid interface harness: P/N 56694 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Challenger MT ISO interface harness: P/N 56850 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Remote engage harness: P/N 57260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Challenger 35–55 engine interface harness: P/N 57313. . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Challenger 65–95 engine interface harness: P/N 57314. . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
John Deere AutoTrac manual override harness: P/N 57535 . . . . . . . . . . . . . . . . . . . . . . . . . 176
John Deere AutoTrac valve harness: P/N 57536 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
vi AgGPS Autopilot Automated Steering System Troubleshooting Guide
John Deere AutoTrac steering jumper harness: P/N 57541 . . . . . . . . . . . . . . . . . . . . . . . . . 178
AutoSense device harness: P/N 57560 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
AutoSense vehicle harness: P/N 57885 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
AgGPS FieldManager™ Display harness (Autopilot): P/N 58187 . . . . . . . . . . . . . . . . . . . . . . 181
AgGPS Autopilot Automated Steering System Troubleshooting Guide vii
viii AgGPS Autopilot Automated Steering System Troubleshooting Guide
C H A P T E R
1
AgGPS Autopilot System Tools 1
This chapter describes tools that are required for servicing the Trimble® AgGPS®
Autopilot™ automated steering system.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 1
1 AgGPS Autopilot System Tools
1.1 Cable service kit for the AgGPS NavController II navigation controller
The Deutsch DTM Service kit is now available through Ladd Industries. This kit will support the repair or modification of cable connectors on the Trimble AgGPSNavController II navigation controller.
11.1 Part number availability
The kits come with pins and sockets for stamped and solid contacts. Because most cables are 16–20 gauge wire, use the DTT-20-00 crimping tool and corresponding stamped contacts.
However, if you currently use the HDT-48-00 crimping tool you can use the solid contacts with your crimper for 18 gauge wire, but the 16 gauge wire will not fit in the solid contact unless you trim the wire first.
Name Part number Image
Trimble Deutsch DTM service kit
7005-107
Crimping tool for size 20 pin 16-20 gauge wire and stamped contacts
DTT-20-00
Crimping tool for size 20 pin 18-24 gauge wire and solid contacts
HDT-48-00(TPN 5401-1568)
2 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Tools 1
11.2 Ordering information
To place an order please contact:
Tina J. Sloan
Account Manager
LADD Industries
Tel: 800-223-1236
E-mail: [email protected]
On the order please include the:
• Shipping address
• Billing account information or credit card details (type of card, expiry date, and name on card)
• Telephone number
Please state that you are a Trimble Dealer to ensure you get preferential Trimble pricing.
Note – This offer is only available in the United States, and Ladd has a minimum order of
$50 when re-ordering.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 3
1 AgGPS Autopilot System Tools
1.2 Hydraulic test kit for the AgGPS Autopilot systemThis section describes how to build a kit to test the Autopilot system hydraulics. You can obtain a test kit by buying:
• individual components from third-party companies
• a pre-assembled kit from TIFCO Industries
12.1 Building a basic test kit
Include the following components in a basic test kit:
Name Quantity Part number Example
Hydraulic adaptor 1 4-4 LOHL6GP5TP
Hydraulic adaptor 2 6-4 LOHL6GP5TP
Hydraulic adaptor 2 8-4 LOHL6GP5TP
Hydraulic adaptor 1 10-4 LOHL6GP5TP
Hydraulic adaptor 1 12-4 LOHL6GP5TP
Hydraulic adaptor 1 4-4 XHX6G5TP
Hydraulic adaptor 2 6-4 XHX6G5TP
4 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Tools 1
Hydraulic adaptor 1 8-4 XHX6G5TP
Hydraulic adaptor 1 10-4 XHX6G5TP
Hydraulic adaptor 1 12-4 XHX6G5TP
Hydraulic adaptor 6 PD331
Hydraulic adaptor 4 PD242
18"–24" hydraulic hose 1 PDH-19
Hypro pressure gauge:2-1/2 LF SS 1/4 BM 5000 PSI
1 (Hypro part number):GG5000
Hypro pressure gauge:2-1/2 LF SS 1/4 BM 3000 PSI
1 (Hypro part number):GG3000
Hypro pressure gauge:
2-1/2 LF SS 1/4 BM 600 PSI
2 (Hypro part number):
GG600
Hypro pressure gauge:
2-1/2 LF SS 1/4 BM 200 PSI
2 (Hypro part number):
GG200
Name Quantity Part number Example
AgGPS Autopilot Automated Steering System Troubleshooting Guide 5
1 AgGPS Autopilot System Tools
Building a complete test kit
To create a complete test kit, include the following additional components:
12.2 Valve cartridges
For a complete test kit, add the following valve cartridges:
For use with H2
Name Quantity Part number Example
Digital pressure gauge 2 SCM-050-0-PD
Flow meter alum 3500 psi, 2–2.0 GPM, 1/4 NPTF
1 (Hedland part number):H201A-020
Flow meter alum 3500 psi, 5–5.0 GPM, 1/2 SAE
1 (Hedland part number):H600A-005
Flow meter alum 3500 psi, 3–30 GPM, 3/4 SAE
1 (Hedland part number):H700A-030
Description Part number
Eaton bipass 160 psi – Hybrid 56922
Eaton bipass 40 psi – Hybrid 59119
Eaton P-comp 160 psi – Hybrid 56910
Eaton P-comp 40 psi – Hybrid 56909
Eaton P-comp plug – Hybrid 56907
Eaton PTS 160 – Hybrid 56905
6 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Tools 1
Basic SUN cartridges for PSV4 and Counterbalance manifold
Ordering information
12.3 Alternative options
TIFCO Industries sells a pre-assembled kit that is designed for the agricultural market. Go to http://www.tifco.com/Page_26x.html.
Description Part number Part number
SUN Counter Balance cartridge in counterbalance valve 47284 CBCA-LHN
SUN 50 psi PressureComp cartridge in PSV4 55147 LPDC-XDN
SUN 150 psi Pressure Comp cartridge in PSV4 2523–2018 LPDC-XGN
Company Web address
Parker Diagnostics http://www.parker.com/catalogs/catalog.asp?nav=1&type=1&id=9
Hypro Gauges http://www.hypropumps.com/Agriculture/Liquid_Gauges.cfm?bums=Agriculture
Hedland Flow Meters http://www.hedland.com
AgGPS Autopilot Automated Steering System Troubleshooting Guide 7
1 AgGPS Autopilot System Tools
8 AgGPS Autopilot Automated Steering System Troubleshooting Guide
C H A P T E R
2
AgGPS Autopilot System Fault Codes 2
This chapter describes the controller LED states and the error codes that can occur on the AgGPS Autopilot automated steering system. It then explains how to correct the faults.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 9
2 AgGPS Autopilot System Fault Codes
2.1 LED statesThere are four LED states that indicate the status of the NavController II navigation controller:
LED state Controller status Solution
Solid on MCU not working Autopilot function not available
Slow blinking at 0.5 Hz Fail-safe monitor mode Autopilot function not available. Need to reflash firmware.
Medium blinking at 1 Hz Monitor mode (usually when connected to Flashloader software)
Autopilot function not available
Rapid blinking at 12 Hz Application mode Normal operation
10 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.2 Autopilot system fault code 1 "FE Send Message"
22.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
22.2 Possible failure modes
This is an operating system fault. It occurs when the inter-task message queue becomes filled for a specific task. This can happen primarily through excessive throughput loading on the processor or through a firmware defect.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
22.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide® Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 11
2 AgGPS Autopilot System Fault Codes
2.3 Autopilot system fault code 2 "FE Task Init."
23.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
23.2 Possible failure modes
This is an operating system fault. It occurs when task initialization fails for a specific task.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
23.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
12 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.4 Autopilot system fault code 3 "FE Go Trap"
24.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
24.2 Possible failure modes
This is an operating system fault. It occurs when the operating system startup fails. This can happen primarily through excessive throughput loading on the processor, or through a firmware defect.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
24.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 13
2 AgGPS Autopilot System Fault Codes
2.5 Autopilot system fault code 4 "A/D Scan Timeout"
25.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
25.2 Possible failure modes
This is an operating system fault due to data sampling task failure. It occurs when the high precision ADC scan (used to sample IMU) fails to complete on time.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
25.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
14 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.6 Autopilot system fault code 5 "A/D Scan Overrun"
26.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
26.2 Possible failure modes
This is an operating system fault due to data sampling task failure. It occurs when the prior high precision ADC scan fails to complete before the next one begins.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
26.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 15
2 AgGPS Autopilot System Fault Codes
2.7 Autopilot system fault code 6 "A/D Data Not Ready"
27.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
27.2 Possible failure modes
This is an operating system fault due to data sampling task failure. It occurs when some portion of the data acquisition sequence fails to complete on time.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
27.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
16 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.8 Autopilot system fault code 7 "A/D Chan Overrun"
28.1 Cause
A critical Autopilot system fault has occurred. The fault condition must be explicitly cleared to resume Autopilot system operation.
28.2 Possible failure modes
This is an operating system fault due to data sampling task failure. It occurs when a high precision ADC interrupt occurs after all channels have been scanned.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
28.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 17
2 AgGPS Autopilot System Fault Codes
2.9 Autopilot system fault code 8 "Vpp Jumpered"
29.1 Cause
This is an internal flash programming error during assembly.
29.2 Possible failure modes
This fault occurs when the internal flash programming voltage jumper is detected as being attached. This jumper should only be applied during the programming of the boot-monitor. This is a manufacturing error during assembly.
29.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
c. If fault code 8 "Vpp Jumpered" reappears, contact technical support.
18 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.10Autopilot system fault code 9 "Battery Bad"
210.1 Cause
This fault occurs when the internal NVRAM backup battery status indicates a low voltage.
210.2 Possible failure modes
If this is a very intermittent problem, use the display to clear the controller fault and continue to operate.
210.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3:a. This indicates possible controller hardware failure. Replace controller.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 19
2 AgGPS Autopilot System Fault Codes
2.11Autopilot system fault code 11 "SP Open Failed"
211.1 Cause
A critical Autopilot system fault has occurred. This error occurs when a serial port initialization fails. The fault condition must be cleared to resume Autopilot system operation.
211.2 Possible failure modes
This fault occurs when a serial port initialization fails.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
211.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
20 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.12Autopilot system fault code 12 "Matrix Inv. Failed"
212.1 Cause
A critical Autopilot system fault has occurred. This is an operating system error. The fault condition must be explicitly cleared to resume Autopilot system operation.
212.2 Possible failure modes
This fault is a math library failure. It occurs when a matrix inversion attempt fails.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
212.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 21
2 AgGPS Autopilot System Fault Codes
2.13Autopilot system fault code 13 "MATHERR Exception"
213.1 Cause
A critical Autopilot system fault has occurred. This is an operating system error. The fault condition must be explicitly cleared to resume Autopilot system operation.
213.2 Possible failure modes
This fault is a math library failure. It occurs when a double precision floating point operation or function fails.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
213.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
22 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.14Autopilot system fault code 14 "MATHERRF Exception"
214.1 Cause
A critical Autopilot system fault has occurred. This is an operating system error. The fault condition must be explicitly cleared to resume Autopilot system operation.
214.2 Possible failure modes
This fault is a math library failure. It occurs when a single precision floating point operation or function fails.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
214.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 23
2 AgGPS Autopilot System Fault Codes
2.15Autopilot system fault code 15 "Fatal Error Reboot"
215.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the controller suffers a fatal error and performs a reboot.
215.2 Possible failure modes
This fault occurs when the controller suffers a fatal error and performs a reboot. A classic example is a brief interruption of electrical power to the controller.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
215.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
24 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.16Autopilot system fault code 16 "App Undefined ISR"
216.1 Cause
A critical Autopilot system fault has occurred. This error occurs when an uninitialized CPU interrupt is detected. The fault condition must be cleared to resume Autopilot system operation.
216.2 Possible failure modes
This fault occurs when an uninitialized CPU interrupt is detected.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
216.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 25
2 AgGPS Autopilot System Fault Codes
2.17Autopilot system fault code 17 "TPU Undefined ISR"
217.1 Cause
A critical Autopilot system fault has occurred. This error occurs when an uninitialized TPU module interrupt is detected. The fault condition must be cleared to resume Autopilot system operation.
217.2 Possible failure modes
This fault occurs when an uninitialized TPU module interrupt is detected.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
217.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
26 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.18Autopilot system fault code 18 "MIOS1 Undefined ISR"
218.1 Cause
A critical Autopilot system fault has occurred. This error occurs when an uninitialized MIOS1 module interrupt is detected. The fault condition must be cleared to resume Autopilot system operation.
218.2 Possible failure modes
This fault occurs when an uninitialized MIOS1 module interrupt is detected.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
218.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 27
2 AgGPS Autopilot System Fault Codes
2.19Autopilot system fault code 19 "QADC Undefined ISR"
219.1 Cause
A critical Autopilot system fault has occurred. This error occurs when an uninitialized QADC64 module interrupt is detected. The fault condition must be cleared to resume Autopilot system operation.
219.2 Possible failure modes
This fault occurs when an uninitialized QADC64 module interrupt is detected.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
219.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
28 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.20Autopilot system fault code 21 "Uninit. App Assert"
220.1 Cause
A critical Autopilot system fault has occurred. This error occurs when an application assert is called with an unregistered error type. The fault condition must be cleared to resume Autopilot system operation.
220.2 Possible failure modes
This fault occurs when an application assert is called with an unregistered error type.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
220.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 29
2 AgGPS Autopilot System Fault Codes
2.21Autopilot system fault code 22 "Acc X Overvoltage"
221.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the X-axis accelerometer is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
221.2 Possible failure modes
This error occurs when the voltage from the X-axis accelerometer is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
221.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
30 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.22Autopilot system fault code 23 "Acc X Undervoltage"
222.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the X-axis accelerometer is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
222.2 Possible failure modes
This fault occurs when the voltage from the X-axis accelerometer is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
222.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 31
2 AgGPS Autopilot System Fault Codes
2.23Autopilot system fault code 24 "Acc Y Overvoltage"
223.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Y-axis accelerometer is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
223.2 Possible failure modes
This fault occurs when the voltage from the Y-axis accelerometer is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
223.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
32 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.24Autopilot system fault code 25 "Acc Y Undervoltage"
224.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Y-axis accelerometer is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
224.2 Possible failure modes
This fault occurs when the voltage from the Y-axis accelerometer is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
224.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 33
2 AgGPS Autopilot System Fault Codes
2.25Autopilot system fault code 26 "Acc Z Overvoltage"
225.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Z-axis accelerometer is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
225.2 Possible failure modes
This fault occurs when the voltage from the Z-axis accelerometer is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
225.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
34 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.26Autopilot system fault code 27 "Acc Z Undervoltage"
226.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Z-axis accelerometer is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
226.2 Possible failure modes
This fault occurs when the voltage from the Z-axis accelerometer is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
226.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 35
2 AgGPS Autopilot System Fault Codes
2.27Autopilot system fault code 28 "Gyro X Overvoltage"
227.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the X-axis gyro is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
227.2 Possible failure modes
This fault occurs when the voltage from the X-axis gyro is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
227.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
36 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.28Autopilot system fault code 29 "Gyro X Undervoltage"
228.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the X-axis gyro is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
228.2 Possible failure modes
This fault occurs when the voltage from the X-axis gyro is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
228.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 37
2 AgGPS Autopilot System Fault Codes
2.29Autopilot system fault code 30 "Gyro Y Overvoltage"
229.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Y-axis gyro is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
229.2 Possible failure modes
This fault occurs when the voltage from the Y-axis gyro is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
229.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
38 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.30Autopilot system fault code 31 "Gyro Y Undervoltage"
230.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Y-axis gyro is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
230.2 Possible failure modes
This fault occurs when the voltage from the Y-axis gyro is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
230.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 39
2 AgGPS Autopilot System Fault Codes
2.31Autopilot system fault code 32 "Gyro Z Overvoltage"
231.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Z-axis gyro is sampled at a value greater than 4.99924 volts. The fault condition must be cleared to resume Autopilot system operation.
231.2 Possible failure modes
This fault occurs when the voltage from the Z-axis gyro is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
231.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
40 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.32Autopilot system fault code 33 "Gyro Z Undervoltage"
232.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the Z-axis gyro is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
232.2 Possible failure modes
This fault occurs when the voltage from the Z-axis gyro is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
232.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Drive the vehicle 6-8 mph for about 100 yards to orientate the controller gyro
a. If the fault code reappears, contact technical support.
b. If the fault code is a persistent problem, replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 41
2 AgGPS Autopilot System Fault Codes
2.33Autopilot system fault code 34 "Heater Overvoltage"
233.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the IMU thermistor is sampled at a value greater than 4.99924 volts. The fault condition must be explicitly cleared to resume Autopilot system operation.
233.2 Possible failure modes
This error occurs when the voltage from the IMU thermistor is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
233.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
42 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.34Autopilot system fault code 35 "Heater Undervoltage"
234.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the IMU thermistor is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
234.2 Possible failure modes
This fault occurs when the voltage from the IMU thermistor is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
234.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 43
2 AgGPS Autopilot System Fault Codes
2.35Autopilot system fault code 36 "VRef Overvoltage"
235.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the IMU precision voltage reference is sampled at a value greater than 4.99924 volts. The fault condition must be explicitly cleared to resume Autopilot system operation.
235.2 Possible failure modes
This fault occurs when the voltage from the IMU precision voltage reference is sampled at a value greater than 4.99924 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
235.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support. You may need to replace the controller. Possible causes include IMU sensor or cable failure.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support. You may need to replace the controller. Possible causes include IMU sensor or cable failure.
44 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.36Autopilot system fault code 37 "VRef Undervoltage"
236.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the IMU precision voltage reference is sampled at a value less than 0.00076 volts. The fault condition must be cleared to resume Autopilot system operation.
236.2 Possible failure modes
This fault occurs when the voltage from the IMU precision voltage reference is sampled at a value less than 0.00076 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
236.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support. You may need to replace the controller. Possible causes include IMU sensor or cable failure.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support. You may need to replace the controller. Possible causes include IMU sensor or cable failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 45
2 AgGPS Autopilot System Fault Codes
2.37Autopilot system fault code 39 "Steering Overvolt"
237.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the steering sensor is sampled at a value greater than 4.85 volts. The fault condition must be cleared to resume Autopilot system operation. Also check steering sensor connection and operation.
237.2 Possible failure modes
This error occurs when the voltage from the steering sensor is sampled at a value greater than 4.85 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
237.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
46 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
STEP 3: Check the connection and integrity of the steering sensor harness
a. Use the Autopilot Toolbox software to check the Steering Sensor Calibration setting.
b. Observe the sensor volts. It should read close to 2.5 volts at the center position. Center position is with the front tires or tractor pointing forward in a straight line.
c. Perform the Steering Sensor Calibration Test. Observe the voltage range left – center – right. Normal voltage range is a +/- 1.25 –1.75 volts from the center value.
d. Also observe the smoothness of the voltage reading from the steering sensor. If the voltage readings from the steering sensor are erratic replace the steering sensor.
e. Perform the Steering Sensor Calibration Test on the new steering sensor.
f. If the fault code is a persistent problem, contact technical support group.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 47
2 AgGPS Autopilot System Fault Codes
2.38Autopilot system fault code 40 "Steering Undervolt"
238.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the steering sensor is sampled at a value less than 0.15 volts. The fault condition must be cleared to resume Autopilot system operation. Also check steering sensor connection and operation.
238.2 Possible failure modes
This error occurs when the voltage from the steering sensor is sampled at a value less than 0.15 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
238.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
48 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
STEP 3: Check the connection and integrity of the steering sensor harness
a. Use the Autopilot Toolbox software to check the Steering Sensor Calibration setting.
b. Observe the sensor volts. It should read close to 2.5 volts at the center position. Center position is with the front tires or tractor pointing forward in a straight line.
c. Perform the Steering Sensor Calibration Test. Observe the voltage range left – center – right. Normal voltage range is a +/- 1.25 –1.75 volts from the center value.
d. Also observe the smoothness of the voltage reading from the steering sensor. If the voltage readings from the steering sensor are erratic replace the steering sensor.
e. Perform the Steering Sensor Calibration Test on the new steering sensor.
f. If the fault code is a persistent problem, contact technical support group.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 49
2 AgGPS Autopilot System Fault Codes
2.39Autopilot system fault code 41 "Man Ovrd Overvolt"
239.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the manual override sensor is sampled at a value greater than 4.5 volts. The fault condition must be cleared to resume Autopilot system operation. Also check Hydraulic Pressure Transducer.
239.2 Possible failure modes
This error occurs when the voltage from the manual override sensor is sampled at a value greater than 4.5 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
239.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the connection and integrity of the wire harness to the steering valve and hydraulic pressure transducer
50 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
STEP 4: Determine the voltage range and response of the hydraulic pressure transducer
a. Use the Autopilot Toolbox software to check the hydraulic pressure transducer.
b. Click the Edit Setup/Diagnostics icon and then select the Diagnostics tab. Select Manual Override, and then press the Edit button.
c. Observe the "State" & "Raw" voltage from the hydraulic pressure transducer. Turn the steering in either direction and observe the info. Once you touch the steering wheel, the system should change from "Inactive" to "Active" status. Thus indicating an operator input from the steering wheel. Also the voltage should spike and then level out to the previous "Inactive" reading.
d. A possible cause is pressure transducer failure. Replace the hydraulic pressure transducer if there is no response or an erratic response.
e. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 51
2 AgGPS Autopilot System Fault Codes
2.40Autopilot system fault code 42 "Man Ovrd Undervolt"
240.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the manual override sensor is sampled at a value less than 0.3 volts. The fault condition must be cleared to resume Autopilot system operation. Also check Hydraulic Pressure Transducer.
240.2 Possible failure modes
This fault occurs when the voltage from the manual override sensor is sampled at a value less than 0.3 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
240.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the connection and integrity of the wire harness to the steering valve and hydraulic pressure transducer
52 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
STEP 4: Determine the voltage range and response of the hydraulic pressure transducer
a. Use the Autopilot Toolbox software to check the hydraulic pressure transducer.
b. Click the Edit Setup/Diagnostics icon and then select the Diagnostics tab. Select Manual Override, and then press the Edit button.
c. Observe the "State" & "Raw" voltage from the hydraulic pressure transducer. Turn the steering in either direction and observe the info. Once you touch the steering wheel, the system should change from "Inactive" to "Active" status. Thus indicating an operator input from the steering wheel. Also the voltage should spike and then level out to the previous "Inactive" reading.
d. A possible cause is pressure transducer failure. Replace hydraulic pressure transducer if there is no response or an erratic response.
e. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 53
2 AgGPS Autopilot System Fault Codes
2.41Autopilot system fault code 43 "Gear Lev Overvolt"
241.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the gear level sensor is sampled at a value greater than 4.952 volts. The fault condition must be cleared to resume AgGPS Autopilot system operation. Clear controller guidance faults and check gear lever status with the AgGPS Autopilot Toolbox software.
241.2 Possible failure modes
This fault occurs when the voltage from the gear level sensor is sampled at a value greater than 4.952 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
241.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the wire connections and integrity of the wire harness. Also check the integrity of the gear lever sensor.
54 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
STEP 4: Use the AgGPS Autopilot Toolbox software to determine the gear lever sensor response
a. Operate the vehicle in a safe location.
b. Use the AgGPS Autopilot Toolbox software to check the gear lever sensor response.
c. Click the Edit Setup/Diagnostics icon and then select the Diagnostics tab. Select Gear Lever Indication and then press the Edit button.
d. Observe the "State" status upon changing from park to forward gear and park to reverse gear. Sensor response should indicate the correct directional change.
e. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 55
2 AgGPS Autopilot System Fault Codes
2.42Autopilot system fault code 44 "Gear Lev Undervolt"
242.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the voltage from the gear level sensor is sampled at a value less than 0.15 volts. The fault condition must be cleared to resume Autopilot system operation. Clear controller guidance faults and check gear lever status with the Autopilot Toolbox software.
242.2 Possible failure modes
This error occurs when the voltage from the gear level sensor is sampled at a value less than 0.15 volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
242.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the wire connections and integrity of the wire harness. Also check the integrity of the gear lever sensor.
STEP 4: Use the AgGPS Autopilot Toolbox software to determine the gear lever sensor response
a. Operate the vehicle in a safe location.
b. Use the Autopilot Toolbox software to check the gear lever sensor response.
56 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
c. Click the Edit Setup/Diagnostics icon and then select the Diagnostics tab. Select Gear Lever Indication and then press the Edit button.
d. Observe the "State" status upon changing from park to forward gear and park to reverse gear. Sensor response should indicate the correct directional change.
e. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 57
2 AgGPS Autopilot System Fault Codes
2.43Autopilot system fault code 45 "RPM Too Low"
243.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the measured engine RPM frequency falls below the minimum expected for a tracked vehicle. The fault condition must be cleared to resume Autopilot system operation. Check for damaged RPM cable harness.
243.2 Possible failure modes
This fault occurs when the measured engine RPM frequency falls below the minimum expected for a tracked vehicle.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
243.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness
a. Also check the RPM sensor and cable connections.
b. If the fault code is a persistent problem, contact technical support.
58 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.44Autopilot system fault code 46 "Valve Coil Short"
244.1 Cause
A critical Autopilot system fault has occurred. This error occurs when hardware over-current detection indicates a fault. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
244.2 Possible failure modes
This error occurs when hardware over-current detection indicates a fault.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
244.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 59
2 AgGPS Autopilot System Fault Codes
2.45Autopilot system fault code 47 "Valve Coil Imax"
245.1 Cause
A critical Autopilot system fault has occurred. This error occurs when hardware over-current detection indicates a fault. The fault condition must be cleared to resume Autopilot system operation. Check for damaged steering valve cable harness or steering valve coil failure.
245.2 Possible failure modes
This error occurs when hardware over-current detection indicates a fault.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
245.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harnessSTEP 4: Check the integrity of the steering valve coils and cable
connections
a. If the fault code is a persistent problem, contact technical support.
60 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.46Autopilot system fault code 48 "MOSFET Short"
246.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the sum of the sampled current through the electro-hydraulic solenoids is greater than 3.0 Amps. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
246.2 Possible failure modes
This error occurs when the sum of the sampled current through the electro-hydraulic solenoids is greater than 3.0 Amps.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
246.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harnessSTEP 4: Check the integrity of the steering valve coils and cable
connections
a. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 61
2 AgGPS Autopilot System Fault Codes
2.47Autopilot system fault code 49 "Coil Short to GND"
247.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the sum of the sampled current through the electro-hydraulic solenoids falls below the expected minimum for automatic mode operation. The minimum value for front steer vehicles is 0.12 Amps. The minimum for articulated steer vehicles 0.035 Amps. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
247.2 Possible failure modes
This error occurs when the sum of the sampled current through the electro-hydraulic solenoids falls below the expected minimum for automatic mode operation. The minimum value is 0.12 Amps,
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
247.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harnessSTEP 4: Also check the integrity of the steering valve coils and cable
connections. Check for possible steering valve failureSTEP 5: Check for an incorrect valve installed for vehicle selected
Confirm correct steering valve and manifold
a. If the fault code is a persistent problem, contact technical support.
62 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.48Autopilot system fault code 50 "Coil Shorted"
248.1 Cause
System fault detected. This error occurs when a sampled current through one of the electro-hydraulic solenoids is greater than 5.0 Amps. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
248.2 Possible failure modes
This error occurs when a sampled current through one of the electro-hydraulic solenoids is greater than 5.0 Amps.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
248.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness and steering valve coils
a. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 63
2 AgGPS Autopilot System Fault Codes
2.49Autopilot system fault code 51 "Valve Pressure Fault"
249.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the sampled pressure from one of the electro-hydraulic solenoids is lager than the expected maximum. The fault condition must be cleared to resume Autopilot system operation.
249.2 Possible failure modes
This fault occurs when the sampled pressure from one of the electro-hydraulic solenoids is lager than the expected maximum.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
249.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
64 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.50Autopilot system fault code 52 "Sum Pressure Max"
250.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the sum of the sampled pressures from both of the electro-hydraulic solenoids is larger than the expected maximum. The fault condition must be cleared to resume Autopilot system operation.
250.2 Possible failure modes
This fault occurs when the sum of the sampled pressures from both of the electro-hydraulic solenoids is larger than the expected maximum.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
250.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 65
2 AgGPS Autopilot System Fault Codes
2.51Autopilot system fault code 53 "Sum Pressure Min"
251.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the sum of the sampled pressures from both of the electro-hydraulic solenoids is less than the expected minimum. The fault condition must be cleared to resume Autopilot system operation.
251.2 Possible failure modes
This fault occurs when the sum of the sampled pressures from both of the electro-hydraulic solenoids is less than the expected minimum.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
251.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
66 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.52Autopilot system fault code 54 "SafeMCU Prog. Error"
252.1 Cause
A critical Autopilot system fault has occurred. This error occurs when a failure in the Safety MCU programming process occurs. The fault condition must be cleared to resume Autopilot system operation.
252.2 Possible failure modes
This fault occurs when a failure in the Safety MCU programming process occurs.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
252.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 67
2 AgGPS Autopilot System Fault Codes
2.53Autopilot system fault code 55 "SafeMCU No Stack"
253.1 Cause
A critical Autopilot system fault has occurred. This error occurs when a failure in the Safety MCU reports that it is out of stack space. The fault condition must be cleared to resume Autopilot system operation.
253.2 Possible failure modes
This fault occurs when a failure in the Safety MCU reports that it is out of stack space.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
253.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
68 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.54Autopilot system fault code 56 "SafeMCU Msg Timeout"
254.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the safety MCU reports that the main MCU communication has had a timeout. The fault condition must be cleared to resume Autopilot system operation.
254.2 Possible failure modes
This error occurs when the safety MCU reports that the main MCU communication has had a timeout.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
254.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 69
2 AgGPS Autopilot System Fault Codes
2.55Autopilot system fault code 57 "Angle Out of Bounds"
255.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the safety MCU reports that the steering angle sensor indicates that the wheel position exceeds the specified maximum angle. The fault condition must be cleared to resume Autopilot system operation.
255.2 Possible failure modes
This error occurs when the safety MCU reports that the steering angle sensor indicates that the wheel position exceeds the specified maximum angle.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
255.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
70 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.56Autopilot system fault code 58 "Steering Unsafe"
256.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the safety MCU reports some condition, which is unsafe for automatic operation. The fault condition must be cleared to resume Autopilot system operation.
256.2 Possible failure modes
This fault occurs when the safety MCU reports some condition, which is unsafe for automatic operation.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
256.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.57Autopilot system fault code 59 "MCU2 Vel. Unsafe"
257.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the safety MCU reports that the wheel speed sensor frequency is too low for automatic operation. The fault condition must be cleared to resume Autopilot system operation.
257.2 Possible failure modes
This error occurs when the safety MCU reports that the wheel speed sensor frequency is too low for automatic operation.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
257.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Consult vehicle service manual for proper transmission speed sensor adjustment or specs
a. If the fault code is a persistent problem, contact technical support. Possible controller guidance hardware failure.
72 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.58Autopilot system fault code 62 “Missing 1PPS”
258.1 Cause
There is no PPS signal from the receiver.
258.2 Possible failure modes
This fault occurs when the cable is broken or when the receiver is not working correctly.
258.3 Solution
STEP 1: Check the cabling to the receiver and PPS line
STEP 2: Reset the receiver
STEP 3: Contact Trimble support
AgGPS Autopilot Automated Steering System Troubleshooting Guide 73
2 AgGPS Autopilot System Fault Codes
2.59Autopilot system fault code 64 "Output Balance Bad"
259.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the output balance voltage from the ELC steering interface is outside the stated voltage. The fault condition must be cleared to resume Autopilot system operation.
259.2 Possible failure modes
This fault occurs when the output balance voltage from the ELC steering interface is outside the stated voltage.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
259.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
74 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.60Autopilot system fault code 65 "Output Bal. OverVol"
260.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the output balance voltage from the ELC steering interface is too close to the +5v rail. The fault condition must be cleared to resume Autopilot system operation.
260.2 Possible failure modes
This fault occurs when the output balance voltage from the ELC steering interface is too close to the +5v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
260.3 Solution
STEP 1: Clear the fault code.
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 75
2 AgGPS Autopilot System Fault Codes
2.61Autopilot system fault code 66 "Output Bal. UnderV"
261.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the output balance voltage from the ELC steering interface is too close to the 0v rail. The fault condition must be cleared to resume Autopilot system operation.
261.2 Possible failure modes
This fault occurs when the output balance voltage from the ELC steering interface is too close to the 0v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
261.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
76 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.62Autopilot system fault code 67 "Steering In Fault"
262.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the fault indication from the ELC steering interface indicates a fault has occurred. The fault condition must be cleared to resume Autopilot system operation.
262.2 Possible failure modes
This fault occurs when the fault indication from the ELC steering interface indicates a fault has occurred.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
262.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 77
2 AgGPS Autopilot System Fault Codes
2.63Autopilot system fault code 70 "Test Build Expired"
263.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the expiration date of the currently loaded controller firmware has been reached. The fault will persist, preventing automatic mode. Upgrade controller guidance to the latest released firmware.
263.2 Possible failure modes
This error occurs when the expiration date of the currently loaded controller firmware has been reached.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
263.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: AgGPS 252 GPS receiver is generating false time
a. Reinitialize or cycle power on the GPS receiver. You might need to restore the receiver to factory defaults by clearing BB Ram by using the AgRemote software version 2.xx.
b. If the fault code is a persistent problem, contact technical support. Possible controller guidance hardware failure.
78 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.64Autopilot system fault code 71 "Top FET Sense Err"
264.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the sum of the sampled current through the electro-hydraulic solenoids, is larger than the expected minimum for manual mode operation. The threshold for front steer vehicles is 0.12 Amps. The minimum for articulated steer vehicles is 0.035 Amps. Check the integrity of the cable harness and steering valve coils.
264.2 Possible failure modes
This error occurs when the sum of the sampled current through the electro-hydraulic solenoids, is larger than the expected minimum for manual mode operation. The threshold is 0.12 Amps.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
264.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the steering valve cable harnessSTEP 4: Check the integrity of the Steering Valve Coils and cable
connectionsSTEP 5: Check for possible steering valve failureSTEP 6: If the fault code is a persistent problem, contact technical
support
a. There is a possible controller guidance hardware failure.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 79
2 AgGPS Autopilot System Fault Codes
2.65Autopilot system fault code 72 "Left Pressure OvrVt"
265.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the left pump pressure sensor is sampled at a value too close to the +5v rail. The fault condition must be cleared to resume Autopilot system operation.
265.2 Possible failure modes
This fault occurs when the voltage from the left pump pressure sensor is sampled at a value too close to the +5v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
265.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select the OK button.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
80 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.66Autopilot system fault code 73 "Left Pressure UndVt"
266.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the left pump pressure sensor is sampled at a value too close to the 0v rail. The fault condition must be cleared to resume Autopilot system operation.
266.2 Possible failure modes
This fault occurs when the voltage from the left pump pressure sensor is sampled at a value too close to the 0v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
266.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.67Autopilot system fault code 74 "Right Pressure OvrV"
267.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the right pump pressure sensor is sampled at a value too close to the +5v rail. The fault condition must be cleared to resume Autopilot system operation.
267.2 Possible failure modes
This fault occurs when the voltage from the right pump pressure sensor is sampled at a value too close to the +5v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
267.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now click the OK button.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
82 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.68Autopilot system fault code 75 "Right Pressure UndV"
268.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the right pump pressure sensor is sampled at a value too close to the +5v rail. The fault condition must be cleared to resume Autopilot system operation.
268.2 Possible failure modes
This fault occurs when the voltage from the right pump pressure sensor is sampled at a value too close to the +5v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
268.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.69Autopilot system fault code 76 "VT Assert Failure"
269.1 Cause
A critical Autopilot system fault has occurred. This is a firmware error. It occurs when a fault is detected in the display object pool management section. The fault condition must be cleared to resume Autopilot system operation. Update controller firmware to latest revision.
269.2 Possible failure modes
This is a firmware error. It occurs when a fault is detected in the display object pool management section.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
269.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the cable harness (termination/noise).STEP 4: If the fault code is a persistent problem, contact technical
support.
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AgGPS Autopilot System Fault Codes 2
2.70Autopilot system fault code 77 "VT Object Pool Buffer Overflow"
270.1 Cause
A critical Autopilot system fault has occurred. This is a firmware error. It occurs when the object pool message buffer overflows. The object pool buffers message during working set upload, prior to first activation of working set, and while display is changing data masks. The fault condition must be cleared to resume Autopilot system operation. Update controller and display firmware to latest revisions.
270.2 Possible failure modes
This is a firmware error. It occurs when the object pool message buffer overflows.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
270.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the cable harness (termination/noise)STEP 4: If the fault code is a persistent problem, contact technical
support
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2 AgGPS Autopilot System Fault Codes
2.71Autopilot system fault code 78 "VT Comms Error"
271.1 Cause
A critical Autopilot system fault has occurred . This error occurs when a communication error is detected between the controller and Display. The fault condition must be cleared to resume Autopilot system operation. Update controller and display firmware to latest revisions. Remove any recently added CAN bus ECUs (implements).
271.2 Possible failure modes
This error occurs when a communication error is detected between the controller and Display.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
271.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 5: Check the integrity of the cable harness (termination/noise)STEP 6: Remove any recently added CAN bus ECUs (implements)STEP 7: If the fault code is a persistent problem, contact technical
support
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AgGPS Autopilot System Fault Codes 2
2.72Autopilot system fault code 79 "VT Watchdog Timeout"
272.1 Cause
A critical Autopilot system fault has occurred. This error occurs when the Display Manager detects a timeout on a command sent to the display or on a wait for a message from the Display. The fault condition must be cleared to resume Autopilot system operation. Update controller guidance and display firmware to latest revisions. Remove any recently added CAN bus ECUs (implements).
272.2 Possible failure modes
This error occurs when the Display Manager detects a timeout on a command sent to the display or on a wait for a message from the Display.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
272.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Update the display firmware (CAN Bus)
a. Possible display firmware defect.
STEP 4: Check the integrity of the cable harness (termination/noise)STEP 5: Remove any recently added CAN bus ECUs (implements)STEP 6: If the fault code is a persistent problem, contact technical
support
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2 AgGPS Autopilot System Fault Codes
2.73Autopilot system fault code 80 "PP Task Assert Failure"
273.1 Cause
A critical Autopilot system fault has occurred. This is a firmware error. It occurs when a fault is detected in the Path Planning task section. The fault condition must be cleared to resume Autopilot system operation.
273.2 Possible failure modes
This is a firmware error. It occurs when a fault is detected in the Path Planning task section.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
273.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Data Failure (job or GPS receiver)
a. Cycle power on Ag252 GPS receiver.
b. Reload current job.
STEP 4: If the fault code is a persistent problem, contact technical support
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AgGPS Autopilot System Fault Codes 2
2.74Autopilot system fault code 81 "CAN-VT Assert Failure"
274.1 Cause
A critical Autopilot system fault has occurred. This is a firmware error. It occurs when a fault is detected in the display CAN layer section. The fault condition must be cleared to resume Autopilot system operation. Update controller guidance and display firmware to latest revisions. Remove any recently added CAN bus ECUs (implements).
274.2 Possible failure modes
This is a firmware error. It occurs when a fault is detected in the display CAN layer section.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
274.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Update the display firmware (CAN Bus)STEP 4: Check the integrity of the cable harness (termination/noise)STEP 5: Remove any recently added CAN bus ECUs (implements)STEP 6: If the fault code is a persistent problem, contact technical
support
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2 AgGPS Autopilot System Fault Codes
2.75Autopilot system fault code 82 "CN Task Assert Failure"
275.1 Cause
A critical Autopilot system fault has occurred. This is a firmware error. It occurs when a fault is detected in the CAN task section. The fault condition must be cleared to resume Autopilot system operation. Update controller guidance firmware to latest revisions. Remove any recently added CAN bus ECUs (implements) and check integrity of cable harness.
275.2 Possible failure modes
This is a firmware error. It occurs when a fault is detected in the CAN task section.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
275.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
STEP 3: Check the integrity of the cable harness (termination/noise)STEP 4: Remove any recently added CAN bus ECUs (implements)STEP 5: If the fault code is a persistent problem, contact technical
support
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AgGPS Autopilot System Fault Codes 2
2.76Autopilot system fault code 83 "Steering Fault Overvoltage"
276.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the steering fault indicator on the fly-by-wire interface unit is sampled at a value too close to the +5v rail. The fault condition must be cleared to resume Autopilot system operation.
276.2 Possible failure modes
This fault occurs when the voltage from the steering fault indicator on the fly-by-wire interface unit is sampled at a value too close to the +5v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
276.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.77Autopilot system fault code 84 "Steering Fault Undervoltage"
277.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the voltage from the steering fault indicator on the fly-by-wire interface unit is sampled at a value too close to the 0v rail. The fault condition must be cleared to resume Autopilot system operation.
277.2 Possible failure modes
This fault occurs when the voltage from the steering fault indicator on the fly-by-wire interface unit is sampled at a value too close to the 0v rail.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
277.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.78Autopilot system fault code 85 "Coil Short Slew Detected"
278.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the coil shorted detection logic detects steering angle movement that is opposite to the commanded direction. The fault condition must be cleared to resume Autopilot system operation.
278.2 Possible failure modes
This fault occurs when the coil shorted detection logic detects steering angle movement that is opposite to the commanded direction.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
278.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 3: Check the coil sides
a. Make sure that the coil wires are not swapped.
b. Make sure that the hoses are not swapped.
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2 AgGPS Autopilot System Fault Codes
2.79Autopilot system fault code 86 "Battery Voltage Low"
279.1 Cause
A critical AgGPS Autopilot system fault has occurred. This fault can occur when either of the following conditions occur:
• V Battery to controller is detected at less than 10 Volts. The fault condition must be cleared to resume AgGPS Autopilot system operation.
• There is a poor power or ground connection.
279.2 Possible failure modes
This fault occurs when the system detects V Battery to controller as less than 10 Volts or when a power or ground connection is loose.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
279.3 Solution
Low voltage
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the vehicle battery
a. Check the vehicle battery voltage.
b. Replace or charge battery if required
c. If the fault code is a continuous problem, contact technical support.
Poor power connection
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check all connections
a. Check all connections at the point of tractor contact.
b. Toggle the switch terminals for loose or faulty connections.
c. Replace or repair as necessary.
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AgGPS Autopilot System Fault Codes 2
2.80Autopilot system fault code 87 "Battery Voltage High"
280.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when V Battery to controller is detected at greater than 16 Volts. The fault condition must be cleared to resume Autopilot system operation.
280.2 Possible failure modes
This fault occurs when V Battery to controller is detected at greater than 16 Volts.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
280.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the vehicle charging system
a. Check the vehicle system voltage.
b. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.81Autopilot system fault code 88 "Temperature High"
281.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the navigation controller temperature is detected at above 85 C. The fault condition must be cleared to resume Autopilot system operation.
281.2 Possible failure modes
This fault occurs when the navigation controller temperature is detected at above 85 C.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
281.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
c. If the fault code is a continuous problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.82Autopilot system fault code 89 "Temperature Low"
282.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the navigation controller temperature is detected at below -40 C. The fault condition must be cleared to resume Autopilot system operation.
282.2 Possible failure modes
This fault occurs when the navigation controller temperature is detected at below -40 C.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
282.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
c. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.83Autopilot system fault code 90 "Fet or coil open"
283.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the system does not detect a valve coil circuit. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
283.2 Possible failure modes
This fault occurs when the system does not detect a valve coil circuit.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
283.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.84Autopilot system fault code 91 "Valve Wiring Fault"
284.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the system detects a short to ground in the valve coil circuit. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
284.2 Possible failure modes
This fault occurs when the system detects a short to ground in the valve coil circuit.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
284.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.85Autopilot system fault code 96 "Low side short to battery"
285.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when system detects the low side of the coil being shorted to battery. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
285.2 Possible failure modes
This fault occurs when system detects the low side of the coil being shorted to battery.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
285.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.86Autopilot system fault code 97 "Coil overcurrent"
286.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when the system detects either a short across the coil or low side shorted to battery. The fault condition must be cleared to resume Autopilot system operation. Check for a damaged steering valve cable harness or steering valve coil failure.
286.2 Possible failure modes
This fault occurs when the system detects either a short across the coil or low side shorted to battery.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
286.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the steering valve cable harness
a. Also check the integrity of the steering valve coils and cable connections.
b. If the fault code is a persistent problem, contact technical support.
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2.87Autopilot system fault code 98 "Internal Fault Hi Side"
287.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when a short is detected in one of the FETS. The fault condition must be cleared to resume Autopilot system operation.
287.2 Possible failure modes
This fault occurs when a short is detected in one of the FETS.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
287.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.88Autopilot system fault code 99 "Internal Measurement Fault"
288.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when an internal current measurement fault is detected. The fault condition must be cleared to resume Autopilot system operation.
288.2 Possible failure modes
This fault occurs when an internal current measurement fault is detected.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
288.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.89Autopilot system fault code 106 "Internal Fault Low Side"
289.1 Cause
A critical Autopilot system fault has occurred. This fault occurs when a short is detected in one of the FETS. The fault condition must be cleared to resume Autopilot system operation.
289.2 Possible failure modes
This fault occurs when a short is detected in one of the FETS.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
289.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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AgGPS Autopilot System Fault Codes 2
2.90Autopilot system fault code 107 "FE SendMsg Too Big"
290.1 Cause
A critical Autopilot system fault has occurred. An attempt was made to send an inter-task message that was larger than the maximum allowed message size.
290.2 Possible failure modes
This fault occurs when there is a error in the controller’s firmware.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
290.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
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2 AgGPS Autopilot System Fault Codes
2.91Autopilot system fault code 108 "CAN Sensor OPS Message Timeout"
291.1 Cause
A critical Autopilot system fault has occurred. The CAN Operator Presence Switch Status message was not received within the specified interval.
291.2 Possible failure modes
1. CAN bus hardware problem (noise)
2. Other CAN bus ECUs
3. Controller firmware defect
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the cable harness (termination/noise)STEP 3: Remove any recently added CAN bus ECUs (implements)STEP 4: If the fault code is a persistent problem, contact technical
support
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AgGPS Autopilot System Fault Codes 2
2.1 Autopilot system fault code 109 "CAN Sensor OPS Message Error"
21.1 Cause
A critical Autopilot system fault has occurred. The CAN Operator Presence Switch Status message indicates an error state for switch status.
21.2 Possible failure modes
Error reported by tractor Armrest Unit ECU.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
21.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check error codes from the armrest controller with the electronic service tool. Follow EST fault diagnostics.
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2 AgGPS Autopilot System Fault Codes
2.2 Autopilot system fault code 110 "CAN Autoguidance Message Timeout"
22.1 Cause
A critical Autopilot system fault has occurred. CAN Autoguidance message not received within specified interval.
22.2 Possible failure modes
1. CAN bus hardware problem (noise)
2. Other CAN bus ECUs
3. ETC ECU failure
4. Controller firmware defect
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the cable harness (termination/noise)STEP 3: Remove any recently added CAN bus ECUs (implements)STEP 4: If the fault code is a persistent problem, contact technical
support
108 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.1 Autopilot system fault code 111 "CAN Autoguidance Message Error (Vehicle Direction)"
21.1 Cause
A critical Autopilot system fault has occurred. CAN Autoguidance message indicates an invalid or faulted state for the vehicle direction estimate. Estimate of vehicle direction is unknown.
21.2 Possible failure modes
Error reported by tractor ETC ECU.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
21.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check error codes from the ETC controller with the electronic service tool. Follow EST fault diagnostics.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 109
2 AgGPS Autopilot System Fault Codes
2.2 Autopilot system fault code 112 "CAN Autoguidance Message Error (Isolation Valve Invalid)"
22.1 Cause
A critical Autopilot system fault has occurred. CAN Autoguidance message indicates an invalid or faulted state for the IsolationValve Status. The valve cannot be controlled.
22.2 Possible failure modes
Error reported by tractor ETC ECU.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
22.3 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check error codes from the ETC controller with the electronic service tool. Follow EST fault diagnostics.
110 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.3 Autopilot system fault code 113 "CAN Autoguidance Message Error (Isolation Valve Inconsistent)"
23.1 Cause
A critical Autopilot system fault has occurred. CAN Autoguidance message indicates that the IsolationValve state is inconsistent with that being commanded by the navigation controller. Either the isolation valve indicates manual mode when automatic has been commanded, or automatic mode when manual has been commanded by the navigation controller.
23.2 Possible failure modes
1. CAN bus hardware problem (noise)
2. ETC ECU failure
3. Controller firmware defect
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check the integrity of the cable harness (termination/noise)STEP 3: Remove any recently added CAN bus ECUs (implements)STEP 4: If the fault code is a persistent problem, contact technical
support
AgGPS Autopilot Automated Steering System Troubleshooting Guide 111
2 AgGPS Autopilot System Fault Codes
2.1 Autopilot system fault code 114 "AutoTrac Quadrature Steering Override Not Detected"
21.1 Cause
A critical Autopilot system fault has occurred. The navigation controller did not detect the main steering override quadrature encoder used by John Deere AutoTrac systems.
21.2 Possible failure modes
1. Damage to cable harness, or disconnected sensor
2. Damaged quadrature encoder
3. Controller hardware failure
4. Controller firmware defect
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 3: Check the integrity of the main encoder cable harness and connectors
STEP 4: Examine/replace the main encoderSTEP 5: If the fault code is a persistent problem, contact technical
support
112 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.1 Autopilot system fault code 115 "IMU Orientation Wrong"
21.1 Cause
A critical Autopilot system fault has occurred. The orientation of the controller with respect to the vehicle local level has been determined to be inconsistent with the calibrated alignment angles. This check is performed only once per power cycle.
21.2 Possible failure modes
1. The controller may be installed incorrectly.
2. Vehicle may be powered up while on a steep incline ( > 20 degrees).
3. The IMU sensors may be defective.
4. Controller firmware defect.
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 3: Verify that the controller is installed at the correct orientationSTEP 4: Drive the vehicle to a flat area. Cycle the vehicle power and
verify whether or not the fault reoccurs.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 113
2 AgGPS Autopilot System Fault Codes
2.1 Autopilot system fault code 116 "Wheel Speed Sensor Input Is Not Detected"
21.1 Cause
A critical Autopilot system fault has occurred. The tractor is seen to be travelling above 2.0 m/s and no wheel speed sensor input has been detected. This check is performed only once per power cycle.
21.2 Possible failure modes
1. Damaged cable harness (wheel speed sensor disconnected)
2. Wheel speed sensor failed
3. Controller hardware failure
4. GPS receiver failure or misconfiguration
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 3: Check the integrity of the cable harness for an open connection with the wheel speed sensor
STEP 4: Examine/replace the wheel speed sensor
114 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.1 Autopilot system fault code 117 "AutoTrac Quadrature Steering Backup Not Detected"
21.1 Cause
A critical Autopilot system fault has occurred. The backup steering override quadrature encoder used by John Deere AutoTrac systems was not detected by the navigation controller.
21.2 Possible failure modes
1. Damage to cable harness, or disconnected sensor
2. Damaged quadrature encoder
3. Controller hardware failure
4. Controller firmware defect
Note – If this is a very intermittent problem, use the display to clear the controller fault
and continue to operate.
20.1 Solution
STEP 1: Clear the fault code
a. On the display, check the fault detail.
b. Record the fault code. Now select OK.
STEP 2: Check version of controller firmware (EZ-Guide Plus lightbar)
a. On the display, check the software version.
b. From the Configuration screen, select AUTOPILOT and then select DIAGNOSTIC.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 2: Check version of controller firmware (AgGPS 170 field computer)
a. On the display, check the software version.
b. From the main menu, select EQUIPMENT and then select AgGPS AUTOPILOT.
c. Review the application version and date.
d. Update controller firmware to latest revision if available.
e. If the fault code is a continuous problem, contact technical support.
STEP 3: Check the cable harness for an open connection with the backup encoder
STEP 4: Examine/replace the backup encoder
AgGPS Autopilot Automated Steering System Troubleshooting Guide 115
2 AgGPS Autopilot System Fault Codes
2.1 Autopilot system fault code 118 "Steering Status Report Packet Not Detected"
21.1 Cause
A critical Autopilot system fault has occurred. The Steering Status Report Packet sent by the CAT MT steering sub system is not detected.
21.2 Possible failure modes
1. Damage to cable harness or disconnected cable.
2. The warning “ISO Class 3 enabled” on CAT MT Control Panel has not been acknowledged.
20.1 Solution
STEP 1: Examine the cable harnessSTEP 2: Acknowledge the warning
116 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.1 Autopilot system fault code 119 "Steering Override Parameter Error"
21.1 Cause
The Steering Override parameter sent by the CAT MT steering system has value 2 (error).
21.2 Possible failure modes
Error reported by MT steering control module.
21.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 117
2 AgGPS Autopilot System Fault Codes
2.2 Autopilot system fault code 120 "Steering Override Parameter Not Available"
22.1 Cause
The Steering Override parameter sent by the CAT MT steering system has value 3 (unavailable).
22.2 Possible failure modes
Error reported by MT steering control module.
22.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
118 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.3 Autopilot system fault code 121 "Gear Lever Parameter Error"
23.1 Cause
The Gear Lever parameter sent by the CAT MT steering system has value 14 (error).
23.2 Possible failure modes
Error reported by MT steering control module.
23.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 119
2 AgGPS Autopilot System Fault Codes
2.4 Autopilot system fault code 122 "Gear Lever Parameter Not Available"
24.1 Cause
The Gear Lever parameter sent by the CAT MT steering system has value 15 (not available).
24.2 Possible failure modes
Error reported by MT steering control mode.
24.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
120 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.5 Autopilot system fault code 123 "Gear Lever Parameter Unknown"
25.1 Cause
The Gear Lever parameter sent by the CAT MT system has value 4–13 (unknown state).
25.2 Possible failure modes
Error reported by MT steering control module.
25.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 121
2 AgGPS Autopilot System Fault Codes
2.6 Autopilot system fault code 124 "Road Lockout Switch Parameter Error"
26.1 Cause
The Road Lockout Switch parameter sent by the CAT MT system has value 2 (error).
26.2 Possible failure modes
Error reported by MT steering control module.
26.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
122 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.7 Autopilot system fault code 125 "Gear Lever Parameter Not Available"
27.1 Cause
The Road Lockout Switch parameter sent by the CAT MT system has value 3 (unavailable).
27.2 Possible failure modes
Error reported by MT steering control module.
27.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 123
2 AgGPS Autopilot System Fault Codes
2.8 Autopilot system fault code 126 "Steering Command Reset Required Parameter Error"
28.1 Cause
The Steering Command Reset Required parameter sent by the CAT MT system has value 2 (error).
28.2 Possible failure modes
Error reported by MT steering control module.
28.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
124 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.9 Autopilot system fault code 127 "Steering Command Reset Required Parameter Not Available"
29.1 Cause
The Steering Command Reset Required parameter sent by the CAT MT steering system has value 3 (unavailable).
29.2 Possible failure modes
Error reported by MT steering control module.
29.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 125
2 AgGPS Autopilot System Fault Codes
2.10Autopilot system fault code 128 "Steering Subsystem Ready Parameter Error"
210.1 Cause
The Steering Subsystem Ready parameter sent by the CAT MT system has value 2 (error).
210.2 Possible failure modes
Error reported by MT steering control module.
210.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
126 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.11Autopilot system fault code 129 "Steering Subsystem Ready Parameter Not Available"
211.1 Cause
The Steering Subsystem Ready parameter sent by the CAT MT system has value 3 (unavailable).
211.2 Possible failure modes
Error reported by MT steering control module.
211.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 127
2 AgGPS Autopilot System Fault Codes
2.12Autopilot system fault code 130 "CAN Communication Status Parameter Error"
212.1 Cause
The CAN Communication Status parameter sent by the CAT MT system has value 2 (error).
212.2 Possible failure modes
Error reported by MT steering control module.
212.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
128 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.13Autopilot system fault code 131 "CAN Communication Status Parameter Not Available"
213.1 Cause
The CAN Communication Status parameter sent by the CAT MT system has value 3 (unavailable).
213.2 Possible failure modes
Error reported by MT steering control module.
213.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 129
2 AgGPS Autopilot System Fault Codes
2.14Autopilot system fault code 151 "Inching Pedal Depressed Parameter Error"
214.1 Cause
The Inching Pedal Depressed parameter sent by the CAT MT steering system has value 2 (error).
214.2 Possible failure modes
Error reported by MT steering control module.
214.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
130 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.15Autopilot system fault code 152 "Inching Pedal Depressed Parameter Not Available"
215.1 Cause
The Inching Pedal Depressed parameter sent by the CAT MT steering system has value 3 (unavailable).
215.2 Possible failure modes
Error reported by MT steering control module.
215.3 Solution
STEP 1: Check the ISO software versionSTEP 2: Contact the tractor dealer for further assistance
AgGPS Autopilot Automated Steering System Troubleshooting Guide 131
2 AgGPS Autopilot System Fault Codes
2.16Autopilot system fault code 156 "Noisy 1PPS Signal"
216.1 Cause
There is too much noise on the PPS line.
216.2 Possible failure modes
This fault can occur when the laptop is connected to the power supply.
216.3 Solution
STEP 1: If the laptop is connected to the power supply, disconnect itSTEP 2: Contact Trimble support
132 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Fault Codes 2
2.17Autopilot system fault code 157 "TAP Bounds Check Failed"
217.1 Cause
The configuration value is out of bounds.
217.2 Possible failure modes
This fault occurs when the vehicle profile file is corrupt or when the value entered is out of bounds.
217.3 Solution
STEP 1: Obtain a clean vehicle profileSTEP 2: Contact Trimble support
AgGPS Autopilot Automated Steering System Troubleshooting Guide 133
2 AgGPS Autopilot System Fault Codes
134 AgGPS Autopilot Automated Steering System Troubleshooting Guide
C H A P T E R
3
AgGPS Autopilot System Harness Schematics 3
This chapter shows the AgGPS Autopilot system harness schematics.
AgGPS Autopilot Automated Steering System Troubleshooting Guide 135
3 AgGPS Autopilot System Harness Schematics
Autopilot system cable architecture
50137 D
elp
hi to
Din
adatp
ter
55657 V
alv
e e
xt. c
able
Po
we
r5
46
03
-S
TX
/SP
X/F
LX
54630 –
All
oth
er
vehic
les
54947 –
SP
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elp
hi adapte
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54630
55659 –
JD
3 p
in a
cc. adapte
r to
54630
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ble
54
60
1 r
ev C
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Octo
pus"
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rne
ss
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P10
P4
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pla
y
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er.
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nso
r
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lic
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lve
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ar/
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21
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c
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ft c
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33
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12
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c
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ev C
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ble
54609
Ca
ble
54608
Ca
ble
54610
Ca
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54611
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54617
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c 'A
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ray)
12
P S
oc 'C
'(G
ree
n)
4P
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c(G
ray)
6P
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c(G
ray)
12
P S
oc "
A"
(Gra
y)
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nu
al
ove
r-ri
de
3P
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c
(Gra
y)
To
whe
el
spe
ed
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ea
r le
ve
r
P9
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na
lert
Th
ese c
ab
les a
re n
ot
req
uir
ed
wh
en
u
sin
g s
en
so
r re
mo
val so
ftw
are
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so
r I/F
cab
les (
P5)
54615 G
eneric I/F
54620 C
om
mon I/F
54619 J
D 8
XX
0 r
evers
e &
wheel speed
54621 M
X r
evers
e54622 T
G r
evers
e54623 S
TX
/TJ r
evers
e54625 S
PX
revers
e/ neutr
al
54628 J
D47X
0 r
evers
e / n
eutr
al
54629 T
err
agato
r re
vers
e54632 M
echanic
al gear
lever
sw
itch
54634 J
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0 w
heele
d54631 F
LX
revers
e &
wheel speed
55654 C
halle
nger
35-5
5 a
ll sensors
56190 C
halle
nger
65-9
5 a
ll sensors
55651 J
D9X
60/5
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TS
neutr
al
55650 C
aseIH
2388 n
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55658 M
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able
Ag
50/1
50
as a
lig
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ar!
DE
-9 S
oc
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le54612
Note
: A
null
modem
adapte
r is
needed for
Insig
ht. N
o n
ull
modem
is n
eeded o
n A
g50/1
50
or
L6
K.
Po
we
r2
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oc
54613 S
onale
t exte
nsio
n
55656 S
teering e
xt. c
able
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mo
te
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gag
e
2P
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lphi
Ag
21
A
Ca
ble
54
614
Bu
tto
n b
ox
Note
: T
his
connecto
r can b
e
connecte
d to the A
g50/1
50
directly o
r w
hen u
sin
g a
keypad
it c
an b
e c
onnecte
d to the
ham
mer
head in 5
2033
Note
: T
o u
se the A
g50/1
50 a
s
the m
ain
dis
pla
y it
MU
ST
be
connecte
d to the P
4 D
ISP
LA
Y
port
. C
onnect
it t
o the L
ightb
ar/
Spare
port
only
to u
se t
he
Ag50/1
50 a
s a
lig
htb
ar
Se
rvic
e C
ab
les
:
50
16
6
Ag
25
2 c
on
fig
/up
da
te c
ab
le –
re
ce
ive
r co
nn
ectio
n5
94
43
A
G2
52
co
nfig
ca
ble
– N
AV
co
ntr
olle
r co
nn
ectio
n3
09
45
A
g 3
32
/13
2/2
14
co
nfig
/up
da
te c
ab
le41131
Ag
114 c
onfig/u
pda
te c
able
40
94
2-0
1 w
/ 3
97
51
-03
S
N r
ad
io c
on
fig
/up
da
te c
ab
le
Note
: C
onnection
pro
vid
es r
oll
corr
ecte
d
positio
n d
ata
.
CA
N
Inte
rfa
ce
MT
7X
X/8
XX
P1
3 S
pa
re
Se
nso
r
Cab
le56850
12
P S
oc "
B"
(Bla
ck)
Po
wer
sw
itch
op
tio
ns
53183 –
Sta
ndard
Euro
56987 –
Full
Euro
50167-0
1 w
ith 5
0169
– S
N r
adio
to 2
52
55224 P
ort
C s
plit
ter
w/A
g 9
00
39941 –
SN
radio
to
214
58080 –
SN
radio
to
332
Fie
ld M
an
ag
er
Dis
pla
y2
6P
So
c
JD
Au
toT
rack R
ead
y I/F
cab
les
57541 J
um
per
ste
ering a
ngle
sensor
JD
4720
57542 P
hanto
m s
teering a
ngle
sensor
JD
4720
57537 P
hanto
m s
teering a
ngle
sensor
JD
9X
20/J
D4920
58871 P
hanto
m s
teering w
heel sensor
In d
ash
sw
itch
Fo
ot
sw
itch
Ca
ble
57259
56988 S
td E
uro
56989 F
ull
Euro
Manual
Overr
ide
Enco
der
4 p
in
AM
P (
2)
Ca
ble
57535
Sa
uer
Dan
foss
va
lve
4P
Delp
hi
Cab
le
57536
Req
uir
ed
Sen
so
r I/F
cab
les (
P5)
54624 J
D 8
XX
0T
/9000T
54636 M
T700/8
00 w
/ ste
ering b
ox
57313 C
halle
nger
35-5
5 e
ngin
e s
peed
57314 C
halle
nger
65-9
5 e
ngin
e s
peed
Note
: B
attery
Pow
er
(pin
1
on D
elp
hi le
ad)
– c
onnects
to
battery
pow
er
leg o
f pow
er
cable
s 5
4630 a
nd 5
4603
Ca
ble
57260
To e
ng
ine
spe
ed
Pre
ssure
sensor
3P
De
lph
i
Flo
wsw
itch
3P
Delp
hi
Ca
ble
54618
Ca
ble
54626
CA
Thydra
ulic
3P
De
lph
i
Auto
Sense
4P
Soc
Rota
ryP
ot
3P
De
lph
i
Ca
ble
54616
Ca
ble
54605
4P
Soc
Ju
mper
57560C
ab
le57885
Auto
Sense
Ca
ble
57885
Note
: T
his
connection is a
sin
gle
wire fro
m the 5
7885
cable
pro
vid
ing 1
2V
+ s
upply
to
Auto
Sense (c
onnects
to
Pin
1 o
f P
-13)
Ca
ble
58
18
7
Sw
itch
In
pu
ts o
nly
Ca
ble
58
18
8
Fu
ll h
arn
ess
Manual
Overide
Enco
der
Ca
ble
57535
Note
: T
his
connection is a
sin
gle
wire fro
m the 5
7535
cable
(connects
to P
in 3
of
P-1
3)
Battery
pow
er
to
Fie
ld M
anager
Dis
pla
y C
ab
le
Vehic
le S
pecific
I/F
136 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Main harness: P/N 54601
AgGPS Autopilot Automated Steering System Troubleshooting Guide 137
3 AgGPS Autopilot System Harness Schematics
Auxiliary harness: P/N 54602
138 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
SPX/STX/FLX power harness: P/N 54603
AgGPS Autopilot Automated Steering System Troubleshooting Guide 139
3 AgGPS Autopilot System Harness Schematics
Challenger steering interface harness: P/N 54605
140 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
MX/TG power harness: P/N 54607
AgGPS Autopilot Automated Steering System Troubleshooting Guide 141
3 AgGPS Autopilot System Harness Schematics
AgGPS 252 receiver harness: P/N 54608
142 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
21A secondary display harness: P/N 54609
AgGPS Autopilot Automated Steering System Troubleshooting Guide 143
3 AgGPS Autopilot System Harness Schematics
AgGPS 110/114/132 receiver harness: P/N 54610
144 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
AgGPS 170 Field Computer harness: P/N 54611
AgGPS Autopilot Automated Steering System Troubleshooting Guide 145
3 AgGPS Autopilot System Harness Schematics
EZ-Guide Plus Lightbar: P/N 54612
146 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
LBO harness: P/N 54614
AgGPS Autopilot Automated Steering System Troubleshooting Guide 147
3 AgGPS Autopilot System Harness Schematics
Generic interface harness: P/N 54615
148 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Steering angle sensor harness: P/N 54616
AgGPS Autopilot Automated Steering System Troubleshooting Guide 149
3 AgGPS Autopilot System Harness Schematics
Electro hydraulic valve harness: P/N 54617
150 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Pressure transducer harness: P/N 54618
AgGPS Autopilot Automated Steering System Troubleshooting Guide 151
3 AgGPS Autopilot System Harness Schematics
John Deere 8000 series interface harness: P/N 54619
152 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Common interface harness: P/N 54620
AgGPS Autopilot Automated Steering System Troubleshooting Guide 153
3 AgGPS Autopilot System Harness Schematics
MX Magnum interface harness: P/N 54621
154 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
TG interface harness: P/N 54622
AgGPS Autopilot Automated Steering System Troubleshooting Guide 155
3 AgGPS Autopilot System Harness Schematics
STX/TJ interface harness: P/N 54623
156 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere tracked interface harness: P/N 54624
AgGPS Autopilot Automated Steering System Troubleshooting Guide 157
3 AgGPS Autopilot System Harness Schematics
SPX interface harness: P/N 54625
158 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere 47xx interface harness: P/N 54628
AgGPS Autopilot Automated Steering System Troubleshooting Guide 159
3 AgGPS Autopilot System Harness Schematics
Terra-Gator interface harness: P/N 54629
160 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere/Cat MT power interface harness: P/N 54630
AgGPS Autopilot Automated Steering System Troubleshooting Guide 161
3 AgGPS Autopilot System Harness Schematics
Gear lever interface harness: P/N 54632
162 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Challenger MT interface harness: P/N 54636
AgGPS Autopilot Automated Steering System Troubleshooting Guide 163
3 AgGPS Autopilot System Harness Schematics
SPX Power Adapter: P/N 54947
164 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
AgGPS 252 data harness: P/N 55224
AgGPS Autopilot Automated Steering System Troubleshooting Guide 165
3 AgGPS Autopilot System Harness Schematics
Case IH 2388 interface harness: P/N 55650
166 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere combine interface harness: P/N 55651
AgGPS Autopilot Automated Steering System Troubleshooting Guide 167
3 AgGPS Autopilot System Harness Schematics
Challenger 35-55 interface harness: P/N 55654
168 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere 8020 AutoTrac interface harness: P/N 56133
AgGPS Autopilot Automated Steering System Troubleshooting Guide 169
3 AgGPS Autopilot System Harness Schematics
Challenger 65-95 Interface Cable: P/N 56190
170 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Hybrid interface harness: P/N 56694
AgGPS Autopilot Automated Steering System Troubleshooting Guide 171
3 AgGPS Autopilot System Harness Schematics
Challenger MT ISO interface harness: P/N 56850
172 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Remote engage harness: P/N 57260
AgGPS Autopilot Automated Steering System Troubleshooting Guide 173
3 AgGPS Autopilot System Harness Schematics
Challenger 35–55 engine interface harness: P/N 57313
174 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
Challenger 65–95 engine interface harness: P/N 57314
AgGPS Autopilot Automated Steering System Troubleshooting Guide 175
3 AgGPS Autopilot System Harness Schematics
John Deere AutoTrac manual override harness: P/N 57535
176 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
John Deere AutoTrac valve harness: P/N 57536
AgGPS Autopilot Automated Steering System Troubleshooting Guide 177
3 AgGPS Autopilot System Harness Schematics
John Deere AutoTrac steering jumper harness: P/N 57541
178 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
AutoSense device harness: P/N 57560
AgGPS Autopilot Automated Steering System Troubleshooting Guide 179
3 AgGPS Autopilot System Harness Schematics
AutoSense vehicle harness: P/N 57885
180 AgGPS Autopilot Automated Steering System Troubleshooting Guide
AgGPS Autopilot System Harness Schematics 3
AgGPS FieldManager™ Display harness (Autopilot): P/N 58187
AgGPS Autopilot Automated Steering System Troubleshooting Guide 181
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