GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 477520  Size: SH
  1. Remove the instrument panel. Refer to Instrument Panel Assembly Replacement .
  2. Remove the following components from the instrument panel:
  3. 2.1. The screw (2)
    2.2. The air distribution center duct (1)

    Object Number: 477521  Size: SH
  4. Remove the following components from the instrument panel:
  5. 3.1. The 4 screws (1)
    3.2. The windshield defroster outlet duct (2)
    3.3. The heater duct

    Object Number: 477526  Size: SH
  6. Remove the screw (3) from the left side of the rear of the instrument panel (1) which secures the IP wiring harness (2).

  7. Object Number: 477525  Size: SH
  8. Remove the 2 screws (1) from the center of the rear of the instrument panel (3) which secure the IP wiring harness (2).

  9. Object Number: 477526  Size: SH
  10. Remove the screw (3) from the right side of the rear of the instrument panel (1) which secures the IP wiring harness (2).

  11. Object Number: 477522  Size: SH
  12. Disconnect all necessary electrical connectors.
  13. Release the wiring harness retainers and remove the IP wiring harness (2) from the IP reinforcement (1).

Installation Procedure


    Object Number: 477522  Size: SH
  1. Install the IP wiring harness (2) to the IP reinforcement (1). Secure the harness with the plastic retainers.
  2. Connect all electrical connectors.

  3. Object Number: 477526  Size: SH
  4. Install the screw (3) to the left side of the rear of the instrument panel (1) which secures the IP wiring harness (2).

  5. Object Number: 477525  Size: SH
  6. Install the 2 screws (1) to the center of the rear of the instrument panel (3) which secure the IP wiring harness (2).

  7. Object Number: 477526  Size: SH
  8. Install the screw (3) to the right side of the rear of the instrument panel (1) which secures the IP wiring harness (2).

  9. Object Number: 477521  Size: SH
  10. Install the heater duct to the instrument panel.
  11. Install the windshield defroster outlet duct (2) to the instrument panel. Secure the outlet duct with the 4 screws (1).

  12. Object Number: 477520  Size: SH
  13. Install the air distribution center duct (1) to the instrument panel. Secure the center duct with the screw (2).
  14. Install the instrument panel. Refer to Instrument Panel Assembly Replacement .