Control Module HVAC: Service and Repair

REMOVAL

WARNING:
- ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE NEGATIVE BATTERY (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY OR DEATH.
- THE HEAT SINK FOR THE BLOWER MOTOR POWER MODULE MAY GET VERY HOT DURING NORMAL OPERATION. IF THE BLOWER MOTOR WAS TURNED ON PRIOR TO SERVICING THE BLOWER MOTOR POWER MODULE, WAIT FIVE MINUTES TO ALLOW THE HEAT SINK TO COOL BEFORE PERFORMING DIAGNOSIS OR SERVICE. FAILURE TO TAKE THIS PRECAUTION CAN RESULT IN POSSIBLE PERSONAL INJURY.




1. Disconnect and isolate the negative battery cable.
2. Remove the glove box from the instrument panel
3. Disconnect the two wire harness connectors (1) from the blower motor power module (2).
4. Remove the two screws (3) that secure the blower motor power module to the HVAC housing (4).
5. Remove the blower motor power module from the HVAC housing.

INSTALLATION




1. Position the blower motor power module (2) into the HVAC housing (4).
2. Install the two screws (3) that secure the blower motor power module to the HVAC housing. Tighten the screws to 2 N.m (17 in.lbs.).
3. Connect the two wire harness connectors (1) to the blower motor power module.
4. Install the glove box into the instrument panel.
5. Reconnect the negative battery cable.