Relay Control of Retained Accessory Power (RAP)
WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
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 shut-off limit.
The BCM closes 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 opens the RAP relay to end the RAP function when it ends the RAP function as outlined in the previous text.