Ram Truck 1500, 2500 & 3500 (2006-2008)

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.


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.

The wire harness connectors for the sunroof motor/module are located above the vehicle headliner. Removal of the headliner may be necessary for access to the connector and proper diagnosis of the motor/module, 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.

  1. Verify that all other power accessories are in proper operating condition. If not, a common electrical problem may exist.
  2.  
  3. Disconnect the sunroof motor/module connector directly at the motor/module (not at the headliner in-line connector). Connect a test light between the harness connector pin 6 and a known good B+ circuit. The test light should illuminate brightly. If OK, go to Step 3. If not OK repair the ground circuit as necessary.
  4.  
  5. Connect a test light between the harness connector pin 8 and a known good ground. The test light should illuminate brightly. If OK, go to Step 4. If not OK repair the B+ circuit as necessary.
  6.  
  7. Using an ohmmeter check the sunroof switch feed circuit for continuity between the sunroof motor/module and sunroof switch. Continuity should be present. If OK replace the inoperative motor/module.
  8.  
  9. If not OK repair the sunroof switch feed circuit as necessary.
  10.  

Initialization Procedure

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 in step 3.
  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 step 7.
  16.  

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

Position Calibration

Press the power sunroof switch (Open, Closed, and Vent). If no movement occurs when either the open switch or closed switch is pressed, but the system does move when the vent button is pressed and held, the system is not calibrated.

  1. Perform the following procedure to position calibrate the power sunroof system:
    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.  

  2.  

Removal & Installation
Motor

WARNING
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.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the battery negative cable.
  4.  
  5. On Mega Cab models, remove the front seats.
  6.  
  7. Remove the A-pillar trim panels.
  8.  
  9. Remove the upper B-pillar trim panels.
  10.  
  11. On Quad Cab models, remove the upper C-pillar trim panels.
  12.  
  13. Disconnect the wire harness connector located at the left A-pillar from the headliner wire harness
  14.  
  15. Disconnect the headliner wire harness connector from the inside rear view mirror.
  16.  
  17. Remove the overhead console.
  18.  
  19. Remove the sun visors.
  20.  
  21. Remove the sun visor supports.
  22.  
  23. Remove the dome lamp.
  24.  
  25. Remove the two coat hooks.
  26.  
  27. Lower the rear of the headliner downward from the roof panel and disconnect the headliner wire harness connector from the center high mounted stop lamp.
  28.  
  29. Lower the front of the headliner downward and remove the headliner through the passenger door opening.

    Click image to see an enlarged view

    Fig. Headliner view

  30.  
  31. Remove the power sunroof motor/module electrical connector.
  32.  
  33. Remove the retaining screws and remove the motor/module from the vehicle.

    Click image to see an enlarged view

    Fig. Sunroof motor/module (1), harness connector (2), mounting bolts (3)

  34.  

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. Position the headliner into the vehicle through the passenger door opening.
  8.  
  9. Connect the headliner wire harness connector to the center high mounted stop lamp.
  10.  
  11. Raise the rear of the headliner upward and install the two coat hooks.
  12.  
  13. Raise the front of the headliner upward and install the sun visor supports.
  14.  
  15. Install the sun visors.
  16.  
  17. Install the dome lamp.
  18.  
  19. Install the overhead console.
  20.  
  21. Connect the headliner wire harness connector to the inside rear view mirror
  22.  
  23. Connect the headliner wire harness to the wire harness connector located at the left A-pillar.
  24.  
  25. On Quad Cab models, install the upper C-pillar trim panel.
  26.  
  27. Install the upper B-pillar trim panels.
  28.  
  29. Install the upper A-pillar trim panels.
  30.  
  31. On Mega Cab models, install the front seats.
  32.  
  33. Connect the battery negative cable.
  34.  

Switch
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect and isolate the battery negative cable.
  4.  
  5. Remove the overhead console retaining screw, located in the front of console near the windshield.
  6.  
  7. Using your fingertips, grasp the sides of the overhead console and pull straight down evenly to disengage the two snap clips at the rear of the unit.
  8.  
  9. Lower the overhead console from the headliner far enough to access the wire harness connectors.
  10.  
  11. Disconnect the reading lamp wire harness connector.
  12.  
  13. Disconnect the sunroof switch wire harness connector.
  14.  
  15. If equipped, disconnect the Compass Mini-Trip Computer (CMTC) or Electronic Vehicle Information Center (EVIC) module wire harness connector.
  16.  
  17. Remove the overhead console from the vehicle.
  18.  
  19. Remove the sunroof switch.
  20.  

To install:

  1. Install the sunroof switch.
  2.  
  3. Position the overhead console near the mounting location on the headliner.
  4.  
  5. Connect the reading lamp wire harness connector.
  6.  
  7. Connect the sunroof switch wire harness connector.
  8.  
  9. If equipped, connect the Compass Mini-Trip Computer (CMTC) or Electronic Vehicle Information Center (EVIC) module wire harness connector.
  10.  
  11. Align the snap clips on the overhead console housing with their receptacles in the overhead console bracket.
  12.  
  13. Push upward firmly and evenly on the sides of the overhead console housing over the snap clip locations until the snap clips are fully engaged with the receptacles in the overhead console bracket.
  14.  

 
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