GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Warning: Do NOT remove an air supply pipe in an attempt to depressurize the air suspension. Always follow the Air Suspension Depressurization Procedure in Air Suspension. Failure to follow this procedure may cause personal injury or damage to the vehicle.

  1. Remove the compressor assembly from the vehicle and place on a bench. Refer to Compressor Assembly Automatic Level Control Air Replacement.

  2. Object Number: 1671455  Size: SH
  3. Disconnect the electrical connector (1).
  4. Release the control module upper and lower tabs.
  5. remove the control module (2) from the bracket.

Installation Procedure


    Object Number: 1671455  Size: SH
  1. Install the control module (2) to the bracket. Ensure the upper and lower locking tabs are engaged.
  2. Connect the electrical connector (1).
  3. Install the compressor assembly to the vehicle. Refer to Compressor Assembly Automatic Level Control Air Replacement.
  4. Perform the suspension position calibration procedure. Refer to Control Module References for replacement and setup information.