Installation Procedure
- Install the spring and the electrical contact washer over the blower switch knob post.
Courtesy of GENERAL MOTORS CORP.
- Align the contact key with the post keyway.
- Position the switch assembly over the mount posts.
- Install the switch assembly with the screws.
- Connect the electrical connectors to the rear of the control assembly.
- Install the HVAC control assembly. Refer to HVAC Control Assembly Replacement .
- Connect the negative battery cable.
- Perform an operational check of the blower switch positions.