Body Control Systems: Description and Operation

Module Controlled Functions

Body Control Module (BCM)

The Body Control Module (BCM) is located under the glove compartment and controls the following:

- Rear window defrost

- Horn

- Battery saver

- Exterior lighting

- Interior lighting

- Ambient lighting

- Dimmable backlighting

- Power door lock system

- Luggage compartment/liftgate release

- Front and rear wipers

- Perimeter alarm

- Remote Keyless Entry (RKE) system (vehicles without Intelligent Access (IA))

Battery Saver

NOTE: Time-out is 10 seconds if the vehicle is in Factory mode or 0 seconds if the vehicle is in Transport mode.

To save battery voltage, the BCM (Body Control Module) automatically shuts off of the interior and exterior lamps after a time-out period.

For specific information of the battery saver feature for the interior lamps, refer to Lighting and Horns.

For specific information of the battery saver feature for the exterior lamps, refer to Lighting and Horns.

Remote Function Actuator (RFA) Module

The Remote Function Actuator (RFA) is located under the RH front seat and controls the following:

- Ignition switch modes

- Passive Anti-Theft System (PATS) (vehicles with Intelligent Access (IA))

- Remote Keyless Entry (RKE) system (vehicles with IA (Intelligent Access))

Refer to the appropriate system for system specific information and diagnostics.