Body Control Module: Service and Repair

REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.




1. Disconnect the negative battery cable(s).
2. Remove the knee bolster.

IMPORTANT: The ignition switch should be in the OFF position when connecting or disconnecting the connectors to the BCM. Always disconnect the brown BCM connector first. Connect the brown BCM connector last. The BCM can set DTCs with the ignition switch in the OFF position. The BCM has battery run down protection for the courtesy lamp circuit. The BCM battery run down protection cannot detect shorts on inputs or other circuits which the BCM does not control. Use the scan tool in order to activate the POWER DOWN NOW mode in order to check for current draws on circuits which are not controlled by the BCM or controlled by the battery run down protection system.




3. Disconnect the brown connector.
4. Disconnect all other connectors.
5. Remove the BCM from the sliding bracket.

INSTALLATION PROCEDURE




1. Slide the BCM onto the bracket.
2. Connect all the connectors except the brown connector.
3. Connect the brown connector.




4. Install the knee bolster.
5. Connect the negative battery cable(s).
6. Reprogram the BCM. Programming and Relearning