Figure 3 – PCM Connectors
description
Transcript of Figure 3 – PCM Connectors
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 3 – PCM Connectors
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 4 – PCM Connector Pin Removal Tool
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 5 – Diagnostic Pin Out Box
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 6 – PCM Power and Grounds
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 7 – 5V Power Supply (three wire analog sensor)
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 9 – CMP and CKP Sensors
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 10 & 11 – Typical 6 Cyl CKP Trigger and Scope Pattern
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 12 & 13 – Typical 6 Cyl CMP Triggers and Scope Pattern
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 14 – Superimposed CMP and CKP Scope Patterns
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 15 – PCM Digital (switched) Inputs
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 17 – 2-Wire Analog Inputs
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 32 – Integrated Cruise Control System
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 18 – Integrated S/C MUX Switches
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Switch Min/Max Voltage Range
Resume / Accell 3.89V – 4.19V
Set or Set / Coast 3.17V – 3.57V
Coast 2.55V – 2.95V
Cancel 1.60V – 2.00V
On / Off 0.60V – 1.15V
Table 1 – Integrated S/C MUX Switches Voltages
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 19 – O2 Sensor Signal Circuit
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 20 – Ignition Coil (COP) Circuits
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 21 – Injector Control Circuits
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 22 – BOSS Output Control (dual)
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 23 – High-Side Controlled Outputs
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 24 – O2 Sensor Heater Circuits
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 25 – Charging System Control
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 26 – Speed Density Equation (prior to NGC)
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 27 – “Model-Based” Fuel Equation (NGC)
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 29 – Natural Vacuum Principle Demonstrated
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 30 – NVLD Assembly (canister mounted shown)
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 31 – NVLD Schematic
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Figure 34 – Double Start Override System
NGC Fuel System: Operation & DiagnosisNGC Fuel System: Operation & Diagnosis
Student Learning Objectives:• Identify and explain the hardware differences between the NGC PCM and
previous PCMs• Demonstrate how to use all special tools• Identify, explain and diagnose all engine controller power and ground
supplies, as well as communication networks that are unique to NGC• Identify, explain and diagnose all PCM inputs and outputs that are unique
to NGC• Demonstrate an understanding of the unique differences of the “Model-
Based” fuel strategy on NGC vehicles• Demonstrate an understanding of the unique differences in purge and EGR
strategies• Demonstrate an understanding of the unique differences in accessory
controls• Identify, explain and diagnose the NVLD system