GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 588308  Size: SH
  1. Remove the blower motor. Refer to Blower Motor Replacement .
  2. Disconnect the electrical connection at the blower motor resistor assembly.

  3. Object Number: 477123  Size: SH
  4. Remove the blower motor resistor assembly screws.
  5. Remove the blower motor resistor assembly.

Installation Procedure


    Object Number: 477123  Size: SH
  1. Install the blower motor resistor assembly.
  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 blower motor resistor assembly screws.
  4. Tighten
    Tighten the screws to 1 N·m (9 lb in).


    Object Number: 588308  Size: SH
  5. Connect the electrical connector to the blower motor resistor assembly.
  6. Install the blower motor. Refer to Blower Motor Replacement .