Lincoln Corsair Manuals

Lincoln Corsair: Roof Opening Panel / Description and Operation - Roof Opening Panel - System Operation and Component Description

Lincoln Corsair 2020-2024 Service Manual / Body and Paint / Body and Paint / Roof Opening Panel / Description and Operation - Roof Opening Panel - System Operation and Component Description

System Operation


Item Description
1 BCM
2 Roof Opening Panel Control Switch
3 Sliding Glass Motor / Module
4 Shade Motor

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.

Switch Operation

The roof opening panel is an electronically operated glass panel that can be opened, closed or tilted (vent position) by the roof opening panel control switch, the shield switch. Actuating the switches supplies a signal to the roof opening panel glass and shield motor/module. The front sliding glass panel and the shield use two integrated motors/modules that are serviced as assemblies. The roof opening panel and shield has one-touch open and one-touch close features that are activated when the switch is pressed.

Shield Operation

When the shield OPEN switch is pressed the shield will automatically open the roof opening panel fixed glass to a full open position. One touch will take the shad to a full open position. If user wants to stop it at any position, the switch should be pressed again. When the sliding glass panel is closed, the shield is open to any position beyond comfort stop and the shield CLOSE switch is pressed, the shield moves forward to the comfort stop position and stops. After stopping at the comfort stop position, pressing the shield Close switch again will fully close the shield. If the shield is in the closed position and the front sliding glass panel OPEN switch is pressed, the shield will perform a one-touch open operation automatically which will then be followed by the front sliding glass panel operation that was requested. To partially open or close the shield while it is moving, press shield OPEN or CLOSE switch again to stop the shield in the desired position.

Sliding Glass Panel Operation

When the front sliding glass panel OPEN switch is pressed the front sliding glass panel will automatically open the roof opening glass to a comfort open position via one touch. If user wants to stop it at any position, the switch should be pressed again. To fully close the front sliding glass panel, press the front sliding glass panel CLOSE switch. The front sliding glass panel will fully close. The front sliding glass panel movement can be stopped at any time in either direction by pressing the front sliding glass panel switch in either direction. The vent position can only be requested when the front sliding glass panel is in the fully closed position. To open to the vent position, press the CLOSE switch. The front sliding glass panel will move to the vent position automatically. The front sliding glass panel can be fully closed from the vent position by pressing the front sliding glass panel CLOSE switch. If the shield is in the closed position and the front sliding glass panel OPEN switch is pressed, the shield will perform a one-touch open operation automatically which will then be followed by the front sliding glass panel operation that was requested.

Bounce Back - Front Sliding Glass Panel And Shield

The sliding glass panel and shield has a bounce back feature. If an obstacle has been detected as the front sliding glass panel or shield is closing, operation will automatically reverse and stop at a predetermined position.

Security Override

To override a bounce back condition (to overcome the resistance of ice on the front sliding glass panel seal for example), within 2 seconds of a bounce back event, press and hold the front sliding glass panel CLOSE switch. The front sliding glass panel will operate in manual mode with bounce back detection disabled until the switch is released.

Roof Opening Panel Fixed Glass

The roof opening panel system on this vehicle includes a fixed roof panel glass behind the front sliding glass panel. Any time this panel is removed or adjusted the front sliding glass panel will need to be initialized.
Refer to: Power Roof Opening Panel Initialization (501-17 Roof Opening Panel, General Procedures).

Jumper Harness and Calibration

There is a jumper harness between roof opening panel C921 and both roof opening panel assembly motors (shade and front sliding glass panel motors).

If the calibration of the front sliding glass panel motor is lost the glass motor will only move in the close direction other than a one time short movement in the open direction. Also the shield motor will open fully, then only operate between fully open and the front of the fixed glass panel.

If the calibration of the shield motor is lost the glass motor will only move in the close direction and once closed will not open. Also the shield motor will only move in the close direction other than a one time short movement in the open direction.

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