Body Control Systems: Description and Operation

This vehicle is equipped with 1 of 3 types of BCM types. The BCM type installed on this vehicle is based on the vehicle equipment content and options. The following are the 3 types:
^ BCM type 2
^ BCM type 3
^ BCM type 4

BCM Type 2
The BCM type 2 has the following features:
^ Retained Accessory Power (RAP) - refer to Retained Accessory Power (RAP) Description and Operation in Accessory Delay Module for detailed information.
^ Audible warnings - Refer to Audible Warnings Description and Operation in Instrument Panel, Gages and Console for detailed information.
^ Interior lighting - Refer to Interior Lighting Systems Description and Operation in Lighting Systems for detailed information.
^ Exterior lighting - Refer to Exterior Lighting Systems Description and Operation in Lighting Systems for detailed information.
^ Automatic power doors locks - Refer to Power Door Locks Description and Operation in Doors for detailed information.

BCM Type 3
Vehicles with RPO AU0 are equipped with a BCM type 3. The BCM type 3 has all of the features of the BCM type 2 as well as the ability to receive keyless entry information from the Remote Control Door Lock Receiver (RCDLR) module Refer to Keyless Entry System Description and Operation in Keyless Entry for detailed information.

BCM Type 4
Vehicles with RPO AU0 and UA6 are equipped with a BCM type 4. The BCM type 4 has all of the features of the BCM type 3 as well as the Content Theft Deterrent (CTD) feature. Refer to Content Theft Deterrent (CTD) Description and Operation in Theft Deterrent for detailed information.

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes