GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 39232 Wiper Transmission Separator


    Object Number: 306506  Size: SH
  1. Remove the wiper arm assemblies from the vehicle. Refer to Windshield Wiper Arm Replacement .
  2. Remove the air inlet grille panel from the vehicle. Refer to Air Inlet Grille Panel Replacement .
  3. Remove the connector from the wiper motor.
  4. Remove the wiper transmission from wiper motor crank arm using the J 39232 Wiper Transmission Separator.

  5. Object Number: 334235  Size: SH
  6. Remove three screws and the wiper drive system module from the vehicle.

  7. Object Number: 334241  Size: SH
  8. Remove three screws and the pulse circuit board and the cover from the wiper motor.

Installation Procedure

Tools Required

J 39529 Wiper Transmission Installer


    Object Number: 334241  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the pulse circuit board and cover on the wiper motor with three screws.
  2. Tighten
    Tighten screws to 2 N·m (18 lb in).


    Object Number: 334235  Size: SH
  3. Install the wiper drive system module on the vehicle with three screws.
  4. Tighten
    Tighten screws to 10 N·m (88 lb in).


    Object Number: 306515  Size: SH
  5. Install the wiper transmission on the wiper motor crank arm using the J 39529 Wiper Transmission Installer.
  6. Install the connector to the wiper motor.
  7. Install the air inlet grille panel on the vehicle. Refer to Air Inlet Grille Panel Replacement .
  8. Install the wiper arm assemblies on the vehicle. Refer to Windshield Wiper Arm Replacement .
  9. Operate the wipers and check for proper operation.