Body Control Module: Notes

The Body Control Module (BCM) supplies vehicle occupants with visual and audible information and controls various vehicle functions. To provide and receive information, the module is interfaced to the vehicle's serial bus communications network (the Programmable Communication Interface or PCI bus). This network consists of the Body Control Module (BCM), Powertrain Control Module (PCM), Sentry Key Immobilizer Module (SKIM), the Transmission Control Module (TCM), the Electro/Mechanical Instrument Cluster (MIC), Compass/Mini-Trip Computer (CMTC), Occupant Restraint Controller (ORC), optional Anti-Lock Brakes (ABS), the optional radio and remote CD-player, optional left and right airbag control modules. The BCM is operational when battery power is supplied to the module, ignition switch power is needed for ignition switched functions.

The following body control computer systems are covered:

• Chime System
• Communications
• Compass/Mini-Trip Computer
• Door Ajar System
• Exterior Lighting
• Instrument Cluster
• Interior Lighting
• Power Door Locks/Remote Keyless Entry
• Power Convertible Top
• Vehicle Theft Security System
• Wiper/Washer System

Body control computer fault messages are accessed through 16-pin Data Link Connector (DLC) using Chrysler's Diagnostic Readout Box (DRBIII(R)). If a generic scan tool is used, some functions listed may not be accessible. DLC is located under left side of instrument panel. See Figure .