Relay Control of Retained Accessory Power (RAP)
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Retained accessory power (RAP) is a vehicle power mode that permits the operation of selected customer convenience items after the ignition switch is turned OFF. These selected items will remain in operation until a passenger compartment door is opened or until the RAP function timer reaches its time-out limit.
The body control module (BCM) activates the RAP relay in either the RAP function as described above or if the BCM detects a RUN/ON or accessory power mode. This provides power for the following:
- The power windows
- The sunroof control module, if equipped
The BCM deactivates the RAP relay to end the RAP function when it ends the RAP function as outlined in the previous text.