Retained Accessory Power (RAP) Circuit Description. GMC Truck Sonoma Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1998 🢒 Sonoma Pickup - 4WD 🢒 Body and Accessories 🢒 Retained Accessory Power 🢒 Retained Accessory Power (RAP) Circuit Description

The retained accessory power (RAP) feature allows you to operate the following components after the ignition switch is turned from the RUN position to the LOCK position:

•	The power windows

•	The sunroof

•	The overhead console

•	The entertainment system

The body control module (BCM) monitors the following components:

•	The ignition switch position

•	The door jamb switches

•	The voltage on CKT 755

The BCM commands the RAP relay to turn ON by grounding CKT 755 when the following conditions exist:

•	All of the doors are closed.

•	The ignition switch is turned to the OFF position.

Once the RAP relay is energized, the accessories remain operational until any one of the following conditions exists:

•	The 20 minute timer elapses.

•	The driver/passenger door is opened.

•	The door handle switch is activated.

•	The ignition switch is activated.