Body Control Module (BCM)

The Body Control Module (BCM) controls the interior lamps illumination.

One of the following 3 BCM types are installed on the vehicle based upon the vehicle equipment:

• BCM type 2

This provides the interior illumination control, inadvertent load (battery rundown) protection, chime functions and automatic power door locks.

• BCM type 3

This provides BCM type 2 features plus the keyless entry system (RPO AUO).

• BCM type 4

This provides BCM type 2 and 3 features plus the content theft deterrent (RPO UA6) with remote activation verification and the remote alarm.

For more information regarding the BCM, refer to Body Control System.