Description & Operation
WARNING:
Vehicle is equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEM article.
NOTE:
The Body Control Module (BCM) may also be referred to as Standard Body Module (SBM).
The Body Control Module (BCM) uses the class 2 serial data line to communicate with the following modules: Powertrain Control Module, Instrument Panel Cluster (IPC), HVAC programmer, Electronic Brake and Traction Control Module (EBTCM), Driver Door Module (DDM), PASS-Key III module, Sensing and Diagnostic Module (SDM) and Memory Seat Module (MSM). BCM controls various vehicle functions, such as Brake Shift Interlock (BTSI) and interior dimming control.