HEATING & AIR CONDITIONING
AC004-05
REVISED

Title:
BLOWER MOTOR
ABNORMAL OPERATION

Models:
'03 - '05 4Runner

August 3, 2005

TSB REVISION NOTICE :^ September 12, 2005: The "Parts Identification" section has been updated. Previous versions of this TSB should be discarded.


Introduction

Some 2003 - 2005 model year 4Runner vehicles may experience a condition where the blower motor speed does not match the HVAC display indication. The blower motor controller has been modified to resolve this condition. Follow the repair procedure described in this TSB.

Applicable Vehicles

^ 2003 - 2005 model year 4Runner vehicles produced BEFORE the Production Change Effective VINs shown.








Warranty Information

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 correction of a problem based upon a customer's specific complaint.







Production Change Information







Parts Information

Parts Identification







Countermeasure service parts are identified by the 4-digit date code printed on the side of the blower motor controller cooling fins. Date code is 2 G 17 or later.







Components

Repair Procedure

1. Remove the negative (-) battery terminal.

NOTE :Failure to complete step "1" above may result in internal damage to the transfer case shifting mechanism.







2. Remove the instrument panel under cover sub-assembly No. 2.

A. Remove the screw.

B. Disengage the 3 clips.









C. Disconnect the wire harness from the 4WD computer.

D. Remove the instrument panel under cover sub-assembly No. 2.

3. Remove the blower motor controller.

A. Disconnect the wire harness connector.

B. Remove the two retaining screws.

C. Remove the blower motor controller from the HVAC module.


4. Install the NEW blower motor controller.

A. Insert the blower motor controller into the HVAC module.

B. Install the two retaining screws.

C. Connect the wire harness.


5. Reconnect the 4WD computer.

6. Install the instrument panel under cover sub-assembly No. 2.

7. Reconnect the negative (-) battery terminal.

8. Confirm proper blower motor operation and speed control.

9. Re-initialize all power systems per TSB No. PD008-05, "Power System Initialization During PDS."