GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39232 Wiper Transmission Separator
    • J 39529 Wiper Transmission Installer

Removal Procedure


    Object Number: 497992  Size: SH
  1. Remove the wiper arms. Refer to Windshield Wiper Arm Replacement .
  2. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  3. Disconnect the electrical connector from the wiper motor.

  4. Object Number: 497998  Size: SH
  5. Remove the 4 bolts retaining the wiper system drive module.

  6. Object Number: 498000  Size: SH
  7. Remove the wiper system drive module from the vehicle.

  8. Object Number: 306506  Size: SH
  9. Disconnect the drive link from the wiper motor crank arm using the J 39232 .

  10. Object Number: 498003  Size: SH
  11. Remove the 4 bolts retaining the wiper transmission.
  12. Remove the wiper transmission from the wiper drive system module.

Installation Procedure


    Object Number: 498003  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 wiper transmission onto the wiper drive system module with the 4 bolts.
  2. Tighten
    Tighten the bolts to 7 N·m (62 lb in).


    Object Number: 306515  Size: SH
  3. Connect the drive link onto the wiper motor crank arm using the J 39529 .

  4. Object Number: 498000  Size: SH
  5. Install the wiper drive system module on the vehicle.

  6. Object Number: 497998  Size: SH
  7. Install the 4 bolts.
  8. Tighten
    Tighten the bolts to 8 N·m (71 lb in).


    Object Number: 497992  Size: SH
  9. Connect the electrical connector to the wiper motor.
  10. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  11. Install the wiper arms. Refer to Windshield Wiper Arm Replacement .
  12. Operate the wipers and inspect for proper operation.