Pinpoint Test G: The Roof Opening Panel Does Not Open or Close in VENT Position

Roof Opening Panel

Pinpoint Test G: The Roof Opening Panel Does Not Open or Close in VENT Position

Normal Operation

Under normal operation, when the roof opening panel tilt switch is pressed, a ground signal is sent to the front sliding glass panel motor through circuit CPR38 (WH/BU), which causes the sliding glass panel to move to the VENT position. When the roof opening panel slide or tilt switch is pulled, a ground signal is sent to the front sliding glass panel motor through circuit CPR31 (VT/BN), which causes the sliding glass panel to close.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Roof opening panel switch

- Roof opening panel motor/module assembly

PINPOINT TEST G : THE ROOF OPENING PANEL DOES NOT OPEN OR CLOSE IN VENT POSITION

G1 CHECK THE FRONT SLIDING GLASS PANEL OPERATION

- Attempt to open and close the front sliding glass panel using the roof opening panel slide switch.

Does the front sliding glass panel open and close using the slide control switch?

Yes
GO to G2.

No
GO to Pinpoint Test F to diagnose the inoperative front sliding glass panel. Pinpoint Test F: The Roof Opening Panel Does Not Open or Close - Front Sliding Glass Panel

G2 CHECK THE ROOF OPENING PANEL SWITCH

- Ignition OFF.

- Disconnect: Roof Opening Panel Switch C912.

- Carry out the Roof Opening Panel Switch Component Test.

Is the roof opening panel switch OK?

Yes
GO to G3.

No
INSTALL a new roof opening panel switch. TEST the system for normal operation.

G3 CHECK CIRCUIT CPR38 (WH/BU) FOR AN OPEN

- Measure the resistance between roof opening panel switch C912-3, circuit CPR38 (WH/BU), and roof opening panel module C921-7, circuit CPR38 (WH/BU), harness side.





Is the resistance less than 5 ohms?

Yes
CHECK the overhead console jumper harness for loose pins, an open or a short in circuit CPR38 (WH/BU) between the roof opening panel switch socket and overhead console C921-7. If the overhead console jumper harness is not OK, INSTALL a new overhead console jumper harness and TEST the system for normal operation. If the overhead console jumper harness is OK, GO to G4.

No
REPAIR the circuit. TEST the system for normal operation.

G4 CHECK THE ROOF OPENING PANEL MOTOR/MODULE FOR CORRECT OPERATION

- Disconnect all roof opening panel motor/module connectors.

- Check for:
- corrosion.

- bent pins.

- pushed-out pins.


- Connect all roof opening panel motor/module connectors and make sure they seat correctly.

- Operate the system and verify the concern is still present.

Is the concern still present?

Yes
INSTALL a new front sliding glass panel motor. REFER to Roof Opening Panel Motor - Sliding Front Panel . TEST the system for normal operation.

No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.