Diesel Data: Automotive Repair

Control Assembly: Service and Repair



HVAC CONTROL MODULE REPLACEMENT

REMOVAL PROCEDURE




1. Remove the center I/P trim bezel.
2. Remove the screws from the HVAC control module (2).
3. Depress the HVAC control module tabs (3) and remove the HVAC control module (2) from the I/P (4).
4. Reposition the HVAC control module (2) from the I/P panel (1).
5. Disconnect the electrical connectors from the HVAC control module (2).

INSTALLATION PROCEDURE




1. Connect the electrical connectors to the HVAC control module (2).

IMPORTANT: The Key should be in the off position when connecting the electrical connectors to ensure proper calibration.

2. Install the HVAC control module (2) to the I/P (1).

IMPORTANT: Ensure that the HVAC control module tabs lock into place.

3. Install the screws to the HVAC control module (2).

NOTE: Refer to Fastener Notice.

Tighten the screws to 1.9 N.m (17 lb in).

4. Install the center I/P trim bezel.
5. Start the vehicle and let run for one minute.

IMPORTANT:
- Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating.
- If interrupted improper HVAC performance will result.

6. Refer to Control Module References for programming and setup information.