Post on 10-Apr-2020
T-SB-0061-12 April 6, 2012
Cowl Water Leak
ServiceCategory Vehicle Interior
Section Heating/Air Conditioning Market USA
Applicability
YEAR(S) MODEL(S) ADDITIONAL INFORMATION
2005 – 2012 Tacoma
Introduction
In a limited number of vehicles, water from outside the vehicle may enter the HVAC system throughthe cowl cover. Evidence of water entry will be found in the blower motor housing, on the blowermotor, or on the carpet below the blower motor. If water is found in one of these areas, an updatedcowl panel is available to address this condition.
Warranty Information
OP CODE DESCRIPTION TIME OFP T1 T2
BD1212 R & R Cowl Cover 0.5 55708-04061 66 13
APPLICABLE WARRANTY• This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for
36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described in thisbulletin.
Parts Information
PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME QTY
55708-04060
55708-0406155708-04062 Louver Sub-assy, Cowl Top Ventilator 1
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Cowl Water Leak
Production Change Information
This bulletin applies to all of the following:
• All NUMMI produced Tacoma vehicles
• All TMMTX and TMMBC produced Tacoma vehicles manufactured BEFORE the ProductionChange Effective VINs shown below.
MODEL PLANT ENGINE DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN
5TFNX4CN#CX0118852TR-FE 2WD
5TFTX4CN#CX015009
X-Runner 5TFTU4CN#CX001368
5TFTU4GN#CX018000
5TFJU4GN#CX0180081GR-FE
Pre
5TFKU4HN#CX002107
5TFPX4EN#CX0093192TR-FE
5TFUX4EN#CX011767
5TFUU4EN#CX031307
5TFLU4EN#CX0313101GR-FE
4WD
5TFMU4FN#CX005551
2WD 5TFJX4CN#CX015012
5TFTX4GN#CX009087Pre
5TFJX4GN#CX009083
5TFPX4EN#CX009319
Tacoma TMMTX
2TR-FE
4WD5TFUX4EN#CX011767
3TMJU4GN#CM1314802WD
3TMKU4HN#CM032081
3TMLU4EN#CM088119Tacoma TMMBC 1GR-FE
4WD3TMMU4FN#CM042043
Repair Procedure
1. Verify proper blower motor operation. If the blower motor does NOT operate correctly follow theRepair Manual Problem Symptoms Table to diagnose the blower motor issue.
• 2005 / 2006 / 2007 / 2008 / 2009 / 2010 / 2011 (to 12/2010) / 2011 (from 12/2010) /2012 Tacoma:Vehicle Interior – Heating/Air Conditioning – “Air Conditioning: Air Conditioning System:Problem Symptoms Table”
© 2012 Toyota Motor Sales, USA
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Cowl Water Leak
Repair Procedure (Continued)
2. Verify there is water in/on the blower motor housing, blower motor or the carpet below the blowermotor. If water is found in any of these locations, follow the cowl replacement procedure below.
3. Using a screwdriver wrapped with protective tape,remove the 2 front wiper arm head caps.
Figure 1. .
4. Remove the front wiper arms.
A. Operate the wiper, then stop the windshieldwiper motor assembly at the automatic stopposition.
B. Remove the nut on the left and right wiperarm.
Figure 2. .
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Cowl Water Leak
Repair Procedure (Continued)
5. Disengage the 2 claws on the right and left fenderto cowl side seal.
Figure 3. .
: 1
1 Claw
6. Remove the cowl top ventilator louversub-assembly.
A. Disengage the 2 clips.
B. Disengage the 15 claws, then remove the cowltop ventilator louver sub-assembly.
Figure 4. .
: 2
1
1 Clip
2 Claw
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Cowl Water Leak
Repair Procedure (Continued)
7. Install the NEW cowl top ventilator louversub-assembly.
A. Engage the 15 claws and install the cowl topventilator louver sub-assembly.
B. Engage the 2 clips.
Figure 5. .
: 2
1
1 Clip
2 Claw
8. Install both front fender cowl side seals. Figure 6. .
: 1
1 Claw
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Cowl Water Leak
Repair Procedure (Continued)
9. Install the front wiper arms.
A. Ensure that the wiper arm serration portion is clear of any debris.
B. Clean the wiper pivot serration with a wire brush.
C. Operate the wiper, then stop the windshieldwiper motor assembly at the automatic stopposition.
Figure 7.
1
2
3
1 Wiper Arm Serration
2 Wire Brush
3 Wiper Pivot Serration
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Cowl Water Leak
Repair Procedure (Continued)
D. Install the front wiper arms into the position shown in the illustration.Torque: 21 N*m (209 kgf*cm, 15 ft*lbf)
HINTHold down the arm hinge by hand to fasten the nut.
E. Operate the front wipers while spraying wateror washer fluid on the windshield. Ensure thatthere is no interference between the bladesand pillar.
Figure 8.
2
1
1 Cowl Top Ventilator Louver
2 12.3 – 32.3 mm (0.484 – 1.272 in.)
10. Engage the claw and install the 2 front wiper armhead caps.
Figure 9. .
11. Verify the HVAC System and the windshield wipers are operating correctly.
© 2012 Toyota Motor Sales, USA