GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 866646  Size: SH
  1. Remove the HVAC controller. Refer to Heater and Air Conditioning Control Replacement .

  2. Object Number: 873120  Size: SH
  3. Remove the blower motor switch screws.
  4. Remove the blower motor switch.

Installation Procedure


    Object Number: 873120  Size: SH
  1. Install the blower motor switch and screws.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 866646  Size: SH
  3. Install the HVAC controller. Refer to Heater and Air Conditioning Control Replacement .
  4. Tighten
    Tighten the HVAC controller-to-I/P retainer 2.5 N·m (22 lb in).