Caravan, Town & Country 2006-2007

Sunroof

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Power Sunroof



Diagnosis & Testing

Refer to the list below for possible causes. Before beginning sunroof diagnostics verify that all other power accessories are in proper operating condition. If not, a common electrical problem may exist. Refer to Wiring Diagrams, in this publication for circuit, splice and component descriptions. Check the condition of the circuit protection (20 amp circuit breaker in the Junction Block). Inspect all wiring connector pins for proper engagement and continuity. Check for battery voltage at the power sunroof controller, refer to Wiring Diagrams, for circuit information. If battery voltage of more than 10 volts is detected at the controller, proceed with the following tests (the controller will not operate at less than 10 volts).

  1. Sunroof motor inoperative. Possible causes:

    Faulty control switch.
     
    Faulty circuit ground between sunroof module, control switch, and body harness.
     
    Faulty power circuit between sunroof module, control switch, and body harness.
     
    Faulty sunroof drive motor.
     
    Faulty sunroof module.
     

  2.  
  3. Audible whine when switch is depressed, sunroof does not operate. Possible causes:

    Binding cable.
     
    Faulty sunroof drive motor.
     

  4.  
  5. Audible clicking or ratcheting when switch is pressed, sunroof does not operate. Possible causes:

    Broken or worn drive cable.
     
    Worn drive motor gear.
     
    Mechanisms not synchronized.
     

  6.  
  7. Sunroof vents and opens, but does not close. Possible causes:

    Broken or disengaged trough guide
     
    Binding cable.
     
    Faulty circuit.
     
    Faulty control switch.
     
    Faulty sunroof module.
     
    Faulty drive motor.
     

  8.  
  9. Sunroof vents, but does not open. Possible causes:

    Faulty control switch.
     
    Faulty circuit.
     
    Binding cable or mechanism.
     
    Faulty sunroof module.
     

  10.  
  11. Sunroof does not vent. Possible causes:

    Faulty control switch.
     
    Faulty circuit.
     
    Binding cable or mechanism.
     
    Faulty sunroof module.
     

  12.  

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 circuit 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/module assembly is being sent the proper hard wired output by the sunroof switch.

Removal & Installation
Motor
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Move glass panel to the fully closed position.
  4.  
  5. Disconnect and isolate the negative battery cable.
  6.  
  7. Remove headliner:
    1. Remove sun visors and vanity mirrors
    2.  
    3. Remove sun visor center supports
    4.  
    5. Remove grab handles, if equipped
    6.  
    7. If equipped, remove coat hooks
    8.  
    9. If equipped, remove overhead rail console system
    10.  
    11. Remove the A, B, C and D pillar trim covers
    12.  
    13. Remove liftgate opening header trim
    14.  
    15. If equipped, remove overhead console screws
    16.  
    17. If equipped, remove reading lamps
    18.  
    19. Remove dome lamp
    20.  
    21. Remove push in locking fasteners attaching headliner to rear roof header and roof bows
    22.  
    23. Remove Overhead Rail Console System with DVD Player and related parts, if equipped
    24.  
    25. Remove wiring connections
    26.  
    27. Remove headliner from roof
    28.  
    29. Extract headliner through liftgate opening
    30.  

  8.  
  9. Disconnect the four drain tubes from sunroof housing.
  10.  
  11. Loosen fasteners attaching sunroof assembly.
  12.  
  13. With the aid of a helper, support the sunroof and remove the fasteners attaching sunroof assembly to roof panel.
  14.  
  15. Remove sunroof from vehicle.
  16.  
  17. Remove the sunroof motor/module retaining bolts and remove the motor/module from the vehicle.
  18.  

To install:

  1. Assure proper sunroof motor/module timing before installation as follows:
    1. Manually push the sunroof guide assembly to the full forward position until it is locked into position. This is verified by attempting to push the guide assembly rearward
      NOTE
      The guide rail will be raised above the U-frame assembly when in the lock position.

    2.  
    3. Remove the sunroof glass
    4.  
    5. Manually move the guide pivot inside the guide rail cam slot until it is centered between the etched timing marks on both rails
    6.  
    7. Verify that the white marking is visible in the new motor/module window. If the mark is not visible, connect a power source to the motor/module and cycle the switch until the motor/module is in the closed position (white mark in window)
    8.  

  2.  
  3. Install the sunroof glass, leaving the retaining bolts loose.
  4.  
  5. Position the sunroof motor/module to the sunroof assembly and install the retaining bolts. Tighten sunroof motor/module retaining bolts to 40 inch lbs. (4.2 Nm).
  6.  
  7. Connect the timed sunroof assembly to a power source and assure proper operation before installing the sunroof assembly into the vehicle.
  8.  
  9. Install the sunroof assembly in the vehicle in the reverse order of removal.
  10.  

Switch
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect and isolate the battery negative cable.
  4.  
  5. Separate the overhead console from the headliner, by carefully pulling down on the front portion, toward the windshield, to release the retaining clips.
  6.  
  7. Release the sunroof switch retaining tab, disconnect the electrical connector and remove the switch from the overhead console.
  8.  
  9. Installation is the reverse of removal.

    Click image to see an enlarged view

    Fig. Sunroof switch mounting

  10.  

 
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