Pinpoint Test F : The Shield (Sunshade) Does Not Open Or Close: Notes

WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Roof Opening Panel for schematic and connector information.

Normal Operation and Fault Conditions

The shield (sunshade) motor receives battery voltage at all times from BCM fuse F27 (30A), and receives ignition voltage (accessory delay) from BCM fuse F23 (10A). The roof opening panel motor and switch is grounded through circuit G302 and G301. When the shield (sunshade) open switch is pressed, a signal is sent to the shield (sunshade) motor on sunshade open circuit which causes the shield (sunshade) to open. When the shield (sunshade) close switch is pressed, a signal is sent to the shield (sunshade) motor on the sunshade close circuit which causes the shield (sunshade) to close.

If the K bus (communication) circuit between the roof opening panel motor and shield (sunshade) motor is open or shorted the roof opening panel motor will only fully close the roof opening panel one time, then not operate. Also, if the K bus circuit is open or shorted the shield (sunshade) motor will not operate but the roof opening panel close to the fully closed position 1 time.

If the shield is not open at least to the front of the rear glass (comport stop) and the shield should open to the comfort stop.

Possible Causes

Fuse(s)
Wiring, terminals or connectors
Roof opening panel shield (sunshade) motor/module assembly
Roof opening panel switch