Pinpoint Test I: The Global Open/Closing Function is Inoperative

Roof Opening Panel

Pinpoint Test I: The Global Open/Closing Function is Inoperative

NOTE: The global open feature may be enabled/disabled via scan tool or in some cases modified by the customer following a procedure listed in the vehicle Owner's Literature. For a complete list of available programmable parameters, refer to Information Bus.

Normal Operation

When the global open/close feature is activated, the Smart Junction Box (SJB) sends a signal through circuit CPW01 (BN/BU) to the front sliding glass panel motor to open the roof opening panel sliding glass to the VENT position. The global open feature does not function when the delayed accessory is active.

The door window motors use CPW01 (BN/BU) for the global open signal. Any interference in the circuit or the window motor may cause the global open feature to not operate correctly.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- SJB (Smart Junction Box)

- Front sliding glass motor

- Door widow motors

PINPOINT TEST I : THE GLOBAL OPEN/CLOSING FUNCTION IS INOPERATIVE

I1 VERIFY GLOBAL OPEN/CLOSE FOR THE POWER WINDOWS IS OPERATIONAL

- Operate the power windows using the global open/close procedure.

Do the power windows operate correctly?

Yes
GO to I2.

No
REFER to Windows and Glass to diagnose the inoperative windows.

I2 CHECK DRIVER WINDOW MOTOR

- Remove LF driver door window motor Battery Junction Box (BJB) fuse 30 (30A).

- Operate the power windows using the global open procedure.

Does the roof opening panel operate correctly?

Yes
INSTALL a new LF driver window motor. TEST the system for normal operation.

No
REINSTALL BJB (Battery Junction Box) fuse 30 (30A). GO to I3.

I3 CHECK RF PASSENGER WINDOW MOTOR

- Remove RF passenger door window motor BJB (Battery Junction Box) fuse 4 (30A).

- Operate the power windows using the global open procedure.

Does the roof opening panel operate correctly?

Yes
INSTALL a new RF passenger window motor. TEST the system for normal operation.

No
REINSTALL BJB (Battery Junction Box) fuse 4 (30A). GO to I4.

I4 CHECK RR PASSENGER WINDOW MOTOR

- Remove RR passenger door window motor BJB (Battery Junction Box) fuse 1 (30A).

- Operate the power windows using the global open procedure.

Does the roof opening panel operate correctly?

Yes
INSTALL a new RR passenger window motor. TEST the system for normal operation.

No
REINSTALL BJB (Battery Junction Box) fuse 1 (30A). GO to I5.

I5 CHECK LR PASSENGER WINDOW MOTOR

- Remove LR passenger door window motor BJB (Battery Junction Box) fuse 29 (30A).

- Operate the power windows using the global open procedure.

Does the roof opening panel operate correctly?

Yes
INSTALL a new LR passenger window motor. TEST the system for normal operation.

No
REINSTALL BJB (Battery Junction Box) fuse 29 (30A). GO to I6.

I6 CHECK CIRCUIT CPW01 (BN/BU) FOR AN OPEN

- Ignition OFF.

- Disconnect: Roof Opening Panel Module C921.

- Disconnect: SJB (Smart Junction Box) C2280C.

- Measure the resistance between roof opening panel module C921-14, circuit CPW01 (BN/BU), harness side and SJB (Smart Junction Box) C2280C-10, circuit CPW01 (BN/BU), harness side.





Is the resistance less than 5 ohms?

Yes
CHECK the overhead console jumper harness for loose pins or an open in circuit CPW01 (BN/BU) between the roof opening panel switch socket and overhead console C921-14. 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 I7.

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

I7 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.