- Disconnect and isolate the negative battery cable.
Remove the Instrument Panel Center Bezel, as follows:
- Using a trim stick C-4755 or equivalent, disengage the locking tabs attaching instrument panel center bezel right and/or left side.
- Remove ignition switch bezel.
Remove the instrument panel center bezel(s) from the vehicle.
- Remove the three screws that secure the A/C-heater control to the instrument panel.
Remove the A/C-heater control from the instrument panel and disconnect the two wire harness connectors from the control.
- Position the A/C-heater control to the instrument panel.
- Connect the two wire harness connectors to the back of the A/C-heater control.
- Install the A/C-heater control into the instrument panel.
- Install the three screws that secure the A/C-heater control to the instrument panel. Tighten the screws to 17 inch lbs. (2 Nm).
Install the Instrument panel center bezel, as follows:
- Place instrument panel center bezel(s) right and left side into position.
- Apply pressure on instrument panel center bezel right and/or left side to engage the locking tabs. Install ignition switch bezel.
Reconnect the negative battery cable and perform the heater-A/C control calibration procedure, as follows:
NOTEThe A/C-heater control module must be recalibrated each time an actuator motor or the A/C-heater control is replaced. If the vehicle is so equipped, the calibration procedure also includes rear HVAC positions for each actuator motor.
- Turn the ignition switch to the ON position.
- If equipped with the Manual Temperature Control (MTC) system, press and hold the Power and Recirculation buttons for at least five seconds. If equipped with the automatic temperature control (ATC) system, simultaneously press and hold the Power and Recirculation buttons on the A/C-heater control for at least five seconds. The MTC A/C-heater control Power button light emitting diode (LED) and Recirculation button LED, or the ATC A/C-heater control Delay and Recirculation graphics will begin to flash when the calibration procedure has begun.
- The calibration procedure should take less than two minutes to complete for the manual A/C-heater control, and less than twenty seconds for the ATC A/C-heater control. When the LEDs or graphics stop flashing, the calibration procedure is complete.
- If the LEDs or graphics continue to flash beyond the two minute (manual) or twenty second (ATC) calibration time, it indicates that the A/C-heater control has detected a failure and a Diagnostic Trouble Code (DTC) has been set. The LEDs or graphics will continue to flash even after the ignition switch is cycled Off and On, until a successful calibration is completed or until the vehicle has been driven about 8 miles (13 km).