Pinpoint Test E : The Roof Opening Panel Sliding Glass Does Not Open Or Close: Notes

WARNING: This page is about a different car, the 2015 Lincoln MKZ. 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.

The roof opening panel must be initialized when repairs are carried out on any part of the roof opening panel system or when the roof opening panel motors, glass, assembly, or air deflector has been removed or replaced for any reason. REFER to: Power Roof Opening Panel Initialization - Vehicles With: Panoramic Roof Opening Panel.

Normal Operation and Fault Conditions

The roof opening panel primary motor receives voltage from the accessory delay relay when the ignition is in the ACC or RUN position. The overhead console switch supplies signals to the roof opening panel primary motor to operate the roof opening panel. When the primary motor receives the signal, it communicates with the roof opening panel secondary motor and the roof opening panel shield motor along the K-Bus communication circuit. A failure in the power circuit, ground circuit, switch signal circuit or K-Bus circuit, an internal failure of the switch, primary motor, secondary motor or shield motor, or a motor that has not been initialized all cause the roof opening panel to become inoperative.

When the ignition is in RUN or ACC, the BCM activates the accessory delay relay by grounding the relay coil. When the ignition is set to OFF, the BCM continues to ground the accessory delay relay coil for approximately 10 minutes, or until a front door is opened. When the accessory delay relay is active, it supplies voltage to the roof opening panel system.

NOTE: There are 2 motors that provide the movement of the roof opening panel glass. Both motors are connected to both sides of the glass and operate simultaneously when opening or closing the roof opening panel. The RH (passenger side) motor is the primary motor and the LH (driver side) motor is the secondary motor. The primary motor has 9 circuits in a single connector and the secondary motor has 4 circuits in a single connector. The shield motor is the center motor. All 3 motors have a similar connector.

Possible Causes

Fuses
Wiring, terminals or connectors
Roof opening panel sliding glass motor
Roof opening panel switch
Accessory delay relay
BCM

Visual Inspection and Diagnostic Pre-checks

BJB fuse 27 (30A)
BJB fuse 85 (30A)
BCM fuse 31 (10A)