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”

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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