GM Service Manual Online
For 1990-2009 cars only

Auxiliary Blower Motor Replacement Without E59

Removal Procedure

  1. Remove the inflator air valve opening cover. Refer to Inflator Air Valve Opening Cover Replacement .

  2. Object Number: 734336  Size: SH
  3. Remove the screws from the hinged cover.
  4. Remove the cover from the rear trim panel.
  5. Release the tabs and pull out the trim panel.
  6. Disconnect the auxiliary blower motor electrical connector.
  7. Disconnect the auxiliary blower motor resistor electrical connector.
  8. Disconnect the auxiliary air temperature actuator electrical connector.

  9. Object Number: 691600  Size: SH
  10. Remove the auxiliary blower motor mounting screws.
  11. Remove the auxiliary blower motor from the blower motor housing.

Installation Procedure


    Object Number: 691600  Size: SH
  1. Install the auxiliary blower motor to the blower motor housing.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the auxiliary blower motor mounting screws.
  4. Tighten
    Tighten the screws to 1.6 N·m (14 lb in).

  5. Connect the auxiliary air temperature actuator electrical connector.
  6. Connect the auxiliary blower motor resistor electrical connector.
  7. Connect the auxiliary blower motor electrical connector.

  8. Object Number: 734336  Size: SH
  9. Install the trim panel and press firmly into the tabs.
  10. Align the cover and fasten the screws.
  11. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).

  12. Install the inflator air valve opening cover. Refer to Inflator Air Valve Opening Cover Replacement .

Auxiliary Blower Motor Replacement With E59

Removal Procedure


    Object Number: 812955  Size: SH
  1. Remove the left lower quarter trim panel. Refer to Inflator Air Valve Opening Cover Replacement .
  2. Remove the power sliding door actuator and bracket. Sliding Door Lock Actuator Replacement .
  3. Disconnect the auxiliary blower motor electrical connector.
  4. Disconnect the auxiliary blower motor resistor electrical connector.
  5. Remove the lower auxiliary air distribution duct bolts and retainers.
  6. Remove the lower auxiliary air distribution duct.
  7. Important: The auxiliary blower motor must be removed with the blower motor housing.

  8. Remove the auxiliary blower motor housing screws.

  9. Object Number: 882516  Size: SH
  10. Lift the auxiliary blower motor housing and remove from the HVAC module assembly.

  11. Object Number: 691600  Size: SH
  12. Remove the auxiliary blower motor mounting screws.
  13. Remove the auxiliary blower motor from the blower motor housing.

Installation Procedure


    Object Number: 691600  Size: SH
  1. Install the auxiliary blower motor to the blower motor housing.
  2. 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.

  3. Install the auxiliary blower motor mounting screws.
  4. Tighten
    Tighten the screws to 1.6 N·m (14 lb in).


    Object Number: 882516  Size: SH
  5. Install the blower motor housing to the auxiliary HVAC module assembly.
  6. Align the rear tabs of the blower motor housing to the HVAC module.

  7. Install the auxiliary blower motor housing screws.
  8. Tighten
    Tighten the screws to 1.6 N·m (14 lb in).


    Object Number: 812955  Size: SH
  9. Install the lower auxiliary air distribution duct.
  10. Install the lower auxiliary air distribution retainers.
  11. Install the lower auxiliary air distribution ducts bolts.
  12. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  13. Connect the auxiliary blower motor resistor electrical connector.
  14. Connect the auxiliary blower motor electrical connector.
  15. Install the left lower quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side .