DTC B1477: Retained Accessory Power (Rap) Circuit Low: Description

Retained Accessory Power (RAP) function allows radio, power windows and driver information center (if equipped) to operate with doors closed and ignition off for up to 20 minutes. DTC will set when there is no voltage on Black wire at BCM connector C1 terminal A7 with RAP relay commanded off. DTC B1477 can be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.