Body Control Module: 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 BATTERY NEGATIVE (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.

1. Disconnect and isolate the battery negative cable.
2. Remove the instrument panel fuse cover from the bottom of the Junction Block (JB) and Body Control Module (BCM) unit. (Refer to FUSE COVER - REMOVAL).

Fig.2 Body Control Module Remove/Install:

3. Reach under the instrument panel and behind the JB to access and disconnect the two instrument panel wire harness connectors for the BCM from the BCM connector receptacles.
4. Remove the four screws (Torx T-20) that secure the BCM to the JB.
5. Pull the BCM straight out to wards the dash panel far enough to disconnect the integral BCM to JB connector.
6. Remove the BCM from under the instrument panel.

INSTALLATION

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 BATTERY NEGATIVE (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.

Fig.3 Body Control Module Remove/Install:

1. Position the Body Control Module (BCM) to its mounting location on the Junction Block (JB).
2. Align the terminal pins of the BCM integral connector with the connector receptacle on the JB.
3. Firmly and evenly squeeze the BCM and the JB together until the integral connector is fully engaged.
4. Install and tighten the four screws that secure the BCM to the JB. Tighten the screws to 2.2 Nm (20 in. lbs.).
5. Reconnect the two instrument panel wire harness connectors for the BCM to the BCM connector receptacles.
6. Reinstall the instrument panel fuse cover to the bottom of the BCM and JB unit. (Refer to FUSE COVER - INSTALLATION).
7. Reconnect the battery negative cable.