The Body Control Module (BCM) controls the Retained Accessory Power (RAP) feature. The BCM feature allows for the operation of the following components for 10 minutes (or until a vehicle door opens) after the ignition switch turns from the RUN to the OFF/UNLOCK position:

The BCM interfaces with the vehicle's power distribution through the RAP relay. The RAP relay allows the BCM to control the application of power to circuit 75. Circuit 75 provides power to the following circuits:

When the ignition switch is in either of the following positions, the BCM energizes the RAP relay by grounding circuit 707:

The BCM turns OFF the RAP relay when the ignition switch is in the START position, thus disabling the RAP feature during the engine crank and bulb test.

When the ignition switch turns from the RUN position to the OFF/UNLOCK position with all of the vehicle doors closed, the BCM leaves the RAP relay energized for 10 minutes (see note), or until 1 or more of the following conditions are met:

The BCM resets the RAP timer when the ignition switch turns from the OFF/UNLOCK position to the ACC position.

NOTE: The BCM has an inadvertent load (battery rundown ) protection, which is mileage-sensitive. Vehicles with less than 15 total driven miles have a 3 minute time-out, instead of 10 minutes of RAP.

The BCM monitors the RAP relay control circuit. The BCM sets the Diagnostic Trouble Code (DTC) 4 when detecting the following conditions:

Refer to Body Control Module Diagnostic Information in Body Control System for more information on diagnosing BCM DTCs.