Commander 2006-2007

Sunroof

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Power Sunroof



Diagnosis & Testing

Any diagnosis of the power sunroof system should begin with the use of a scan tool and the proper Diagnostic Procedures Information. The scan tool can provide confirmation that the Controller Area Network (CAN) Data Bus is functional, that all of the electronic modules are sending and receiving the proper messages on the CAN Data Bus, and that the power sunroof motor is being sent the proper hard wired output by the sunroof switch.

Check the condition of the circuit protection and inspect all wiring connector pins for proper engagement and continuity. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.


NOTE
If there is no sunroof movement when the -OPEN- or -CLOSED- button are pushed but the sunroof operates when the -VENT- button is pushed and held the sunroof motor/module is out of calibration. Complete the sunroof position calibration procedure prior to performing any sunroof diagnostics.

Removal & Installation
Motor

CAUTION
Do not attempt to move or reposition the sunroof glass panel or drive cables with the motor/module removed. Vehicle/sunroof damage or personal injury may result.


CAUTION
The sunroof must first be calibrated and the Motor/Module Initialization Procedure must be completed any time a sunroof motor/module is replaced with a new component. Failure to perform this procedure could result in vehicle damage and/or personal injury.

  1. Disconnect the battery negative cable.
  2.  
  3. Remove the vehicle headliner.
  4.  
  5. Remove the power sunroof motor/module electrical connector.
  6.  
  7. Remove the retaining screws and remove the motor/module from the vehicle.

    Click image to see an enlarged view

    Fig. View of sunroof motor/module and connector

  8.  

To install:

  1. Position the power sunroof motor/module in the vehicle.
  2.  
  3. Install the motor/module retaining screws. Tighten the screws to 35 inch lbs. (4 Nm).
  4.  
  5. Connect the motor/module electrical connector.
  6.  
  7. Partially install the vehicle headliner and connect all remaining sunroof electrical connectors.
  8.  
  9. Connect the battery negative cable.
  10.  
  11. Using the following procedure, calibrate the sunroof position:
    1. Turn the ignition to the RUN position.
    2.  
    3. Press the vent button on the power sunroof switch and hold until the sunroof glass panel has moved to the full vent position and the motor movement has stopped for at least 1 second.
    4.  
    5. Press the close switch on the power sunroof switch and hold for a moment (at least 100ms) and release. The sunroof glass panel should continue travel to the full close position. If the sunroof glass panel does not return to the full close position, refer to the appropriate diagnostic information for full system diagnosis.
    6.  
    7. Verify proper system operation.
    8.  

  12.  
  13. Using the following procedure, perform the motor/module initialization:
    NOTE
    Verify the battery is in good condition prior to performing this procedure. Do not leave the vehicle on a battery charger while performing this procedure. If the voltage at the sunroof motor/module drops below 11 volts or exceeds 15 volts at anytime while this procedure is being performed, the motor/module initialization procedure will not be properly completed.

    1. Turn the ignition to the RUN position.
    2.  
    3. Press the vent button on the power sunroof switch and hold until the sunroof glass panel has moved to the full vent position and the motor movement has stopped for at least 1 second.
    4.  
    5. Press the close position on the power sunroof switch and release. The sunroof glass panel should continue travel to the full closed position. This will be considered the first sunroof closed position in a series of four sunroof closes.
    6.  
    7. Press the vent button on the power sunroof switch and release. The sunroof glass panel should move to the full vent position. After the sunroof motor/module has stopped, press the close position on the power sunroof switch and release. The sunroof glass panel should continue travel to the full closed position. This will be considered the second sunroof closed position in a series of four sunroof closes.
    8.  
    9. Continue to move the sunroof glass to the -vent- then -closed- positions two more times so that the sunroof glass has moved to the closed position a total of four times starting with the first sunroof close.
    10.  
    11. Press the open position on the power sunroof switch and release. The sunroof glass panel should continue travel to the full open position.
    12.  
    13. Press the close position on the power sunroof switch and release. The sunroof glass panel should continue travel to the full closed position. This will be considered the first sunroof closed position in a series of five sunroof closes.
    14.  
    15. Press the open position on the power sunroof switch and release. The sunroof glass panel should move to the full open position. After the sunroof motor/module has stopped, press the close position on the power sunroof switch and release. The sunroof glass panel should continue travel to the full closed position. Continue to move the sunroof glass to the -open- then -closed- position four more times so that the sunroof glass has moved to the closed position a total of five times starting with the first sunroof close in the previous step.
      NOTE
      Verify proper EFL calibration by placing a standard pencil at the front of the sunroof and then moving the sunroof to the full closed position. The sunroof should reverse direction upon contact without damage to the pencil.

    16.  

  14.  

Switch
  1. Disconnect and isolate the battery negative cable.
  2.  
  3. Using the following procedure, remove the overhead console from the vehicle:
    1. Remove the inside rearview mirror.
    2.  
    3. Pull downward on the sides of the overhead console housing firmly and evenly to disengage the snap clips from the overhead console bracket.
    4.  
    5. Lower the overhead console from the headliner far enough to access the wire harness connectors.
    6.  
    7. Disconnect the roof wire harness connectors from the Electronic Overhead Module (EOM) and combination power sunroof/liftgate switch if equipped.
    8.  
    9. Remove the overhead console.
    10.  

  4.  
  5. Remove the screws attaching the switch to the overhead console.

    Click image to see an enlarged view

    Fig. View of overhead console and switch

  6.  

To install:

  1. Position the sunroof switch onto the overhead console.
  2.  
  3. Install the screws securing the switch to the overhead console.
  4.  
  5. Using the following procedure, install the overhead console:
    1. Position the overhead console near the mounting location on the headliner.
    2.  
    3. Feed the inside rearview mirror wire harness through the mounting hole.
    4.  
    5. Reconnect the roof wire harness connectors to the Electronic Overhead Module (EOM) and combination power sunroof/liftgate switch if equipped.
    6.  
    7. Align the snap clips on the overhead console housing with their receptacles in the overhead console bracket.

      Click image to see an enlarged view

      Fig. Overhead console installation

    8.  
    9. Push upward firmly and evenly on the sides of the overhead console housing over the snap clip locations until the snap clip is fully engaged with its receptacle in the overhead console bracket.
    10.  
    11. Install the inside rearview mirror.
    12.  

  6.  
  7. Reconnect the battery negative cable.
  8.  

 
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