BCM Functions
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
The Body Control Module (BCM) performs multiple body control functions. The BCM can control devices directly connected to its outputs based on input information obtained from two sources:
- Sensors and switches that are directly connected to the BCM
- By receiving information from other vehicle systems connected to the class 2 serial data link.
The BCM evaluates this information and controls certain body control systems by commanding outputs on or off
The BCM is also capable of controlling other vehicle systems that are not directly wired to the BCM. The BCM does this by sending specific messages on the class 2 serial data link. The vehicle system capable of performing a required function will respond to the BCM message.
The BCM controls these functions:
- Audible warnings, refer to AUDIBLE WARNINGS DESCRIPTION AND OPERATION .
- Interior lighting, refer to INTERIOR LIGHTING SYSTEMS DESCRIPTION AND OPERATION .
- Automatic door locks, refer to POWER DOOR LOCKS DESCRIPTION AND OPERATION .
- Automatic headlamp control, refer to INTERIOR LIGHTING SYSTEMS DESCRIPTION AND OPERATION .
- Keyless entry (AUO option), refer to KEYLESS ENTRY SYSTEM DESCRIPTION AND OPERATION .
- Passlock Sensor theft deterrent, refer to VEHICLE THEFT DETERRENT (VTD) DESCRIPTION AND OPERATION .
- Retained Accessory Power (RAP), refer to RETAINED ACCESSORY POWER (RAP) DESCRIPTION AND OPERATION .