Body Control Module: Service and Repair

REMOVAL

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, SEAT BELT TENSIONER, 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.

NOTE: Before replacing a [1][2]Central Timer Module ([1][2]CTM), use a DRB III scan tool to retrieve the current settings for the CTM programmable features. Refer to the appropriate diagnostic information. These settings should be duplicated in the replacement CTM using the DRB III scan tool before returning the vehicle to service.

1. Disconnect and isolate the battery negative cable.
2. Remove the engine cover from the passenger compartment.

Fig. 2 Central Timer Module Remove/Install:

3. Remove the three screws that secure the Central Timer Module (CTM) to the inboard side of the left center instrument panel support.
4. Pull the [1][2]CTM away from its mounting location far enough to access the instrument panel wire harness connectors.
5. Disconnect the two instrument panel wire harness connectors from the [1][2]CTM connector receptacles.
6. Remove the [1][2]CTM from the instrument panel.

INSTALLATION

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, SEAT BELT TENSIONER, 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.

NOTE: Before replacing a Central Timer Module (CTM), use a DRB III scan tool to retrieve the current settings for the [1][2]CTM programmable features. Refer to the appropriate diagnostic information. These settings should be duplicated in the replacement CTM using the DRB III scan tool before returning the vehicle to service.

1. Position the Central Timer Module (CTM) to the instrument panel.
2. Reconnect the two instrument panel wire harness connectors to the [1][2]CTM connector receptacles.
3. Install and tighten the three screws that secure the [1][2]CTM to the inboard side of the left center instrument panel support. Tighten the screws to 3 Nm (25 in. lbs.).
4. Reinstall the engine cover into the passenger compartment.
5. Reconnect the battery negative cable.