GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 DeVille 🢒 Body and Accessories 🢒 Wiring Systems 🢒 HVAC Control Module Replacement

Removal Procedure

    Object Number: 474633 Size: SH
  1. Remove the instrument panel center trim plate (1). Refer to Instrument Panel Center Trim Panel Replacement in Instrument Panel, Gauges, and Console.
  2. Depress and hold the locking tabs, located on the 4 corners of the HVAC control assembly.

    3. Pull the HVAC control away from the instrument panel (IP).

  3. Disconnect the electrical connectors from the HVAC control.

    4. Object Number: 474755 Size: SH
  4. Remove the HVAC control assembly (1) from the instrument panel.

Installation Procedure

    Object Number: 474755 Size: SH
  1. Connect the HVAC electrical connectors.
  2. Install the HVAC control assembly (1) into the IP.

    3. Push the HVAC control assembly (1) into the IP opening in order to engage the retainers.


    Object Number: 474633 Size: SH
  3. Install the instrument panel center trim plate (1). Refer to Instrument Panel Center Trim Panel Replacement in Instrument Panel, Gauges, and Console.