Roof Opening Panel Operating System

The accessory delay relay in the BCM supplies voltage through fuse F6 (10A) to the sliding glass motor / module allowing the motors to respond to roof opening panel control switch commands. The BCM activates the accessory delay relay whenever the ignition is in the RUN or ACC positions, or for a specific time when the ignition is changed from RUN or ACC to the OFF position. The roof opening panel sliding glass motor and roof opening panel shield motor receive voltage from BJB fuse F37 (30A), and ground from G300 for motor movement. The roof opening panel switch is combined with the overhead console and is serviced with the overhead console. The switches apply a ground signal to the motors depending on the switch position and the motors respond accordingly. The roof opening panel switch receives ground from G203.

NOTE: The moonroof motors will stop working if cycled 3-4 times simultaneously due to overheat. Allow the motors to cool-down for 15 minutes to start working again.

When the vehicle is in motion the BCM sends a PWM signal to the roof opening panel sliding glass motor which then will apply increased force while closing the roof opening panel sliding glass to reduce the possibility of bounce back.