Relay Controlled RAP

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

The BCM keeps the RAP relay energized during all power modes, except Off-Awake and Crank. The relay is also energized for approximately 10 minutes after shutting the ignition OFF and removing the key, providing no door is opened.

Relay controlled RAP will end when one of the following conditions is met:

The BCM receives an input from any door ajar switch indicating the opening of any door after the ignition key is out of the ignition.
IMPORTANT:
If the BCM is receiving any door ajar signal from those switches when the ignition key is turned OFF, RAP will not initiate.
The BCM internal timer for the RAP expires after approximately 10 minutes.
The BCM detects a decrease in battery capacity below a prescribed limit.

The power window system is powered by the RAP relay during the retained accessory power (RAP) power mode.