Exterior Lighting Systems

When the Remote Function Actuation (RFA) module receives a door unlock command from the RFA transmitter, the RFA module will perform the following tasks:
^ Ground the door unlock signal circuit to the Body Control Module (BCM)
^ Send a class 2 message to the BCM indicating that an UNLOCK command has been received

The BCM will then flash the park lamps twice. If the doors are closed when you use the RKE transmitter in order to lock the doors, the park lamps will flash twice. The park lamps will not flash if you use the RKE transmitter in order to open the rear compartment.