GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1997 🢒 Catera 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Temperature Actuator Replacement

Removal Procedure
  1. Disconnect the battery negative cable.

    2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  2. Remove the RF floor air outlet.
  3. Remove the I/P compartment. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.

    4. Object Number: 153292 Size: SH
  4. Bend downward at the accordion section of the supply duct in order to remove the duct from the side air vent.

    5. Object Number: 153296 Size: MH
  5. Disconnect the temperature actuator connector.
  6. Access the temperature actuator from the I/P compartment cavity.

    7. The temperature actuator is located at the top of the HVAC module close to the I/P carrier.

    Important: The actuator linkage may need to be rotated in order to access the screws for the following step.

  7. Remove the actuator screws.
  8. Remove the temperature actuator from the linkage.
  9. Remove the temperature actuator from the vehicle.

Installation Procedure

    Object Number: 153296 Size: MH
  1. Install the temperature actuator in the vehicle.
  2. Install the linkage to the temperature actuator.

    3. Important: The temperature actuator linkage may need to be rotated in order to access the screw holes for the following step.

  3. Install the temperature actuator screws until fully seated and not stripped.
  4. Connect the temperature actuator connector.

    5. Object Number: 153292 Size: SH
  5. Install the supply ducts:
    6. • Insert the supply duct into the module.
    • Bend at the accordion section in order to position.
  6. Install the I/P compartment. Refer to Instrument Panel Compartment Replacement in Instrument Panel, Gauges and Console.
  7. Install the RF floor air outlet.
  8. Connect the battery negative cable.
  9. Reprogram applicable accessories.
  10. Synchronize the actuators:
    11. • Turn the ignition switch to the ON position.
    • Simultaneously press and hold the AUTO and OFF buttons on the ECC control panel for at least 5 seconds.