Corvette 1997-2005

Window Systems

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Door Glass & Regulator



Power Windows
Diagnosis & Testing
Power Window Inoperative - Driver's Door
  1. Ignition ON, command the driver window motor up and down with a scan tool. The driver window should move up and down when commanded.
    1. If the driver window does not move up and down, replace the driver door module, DDM.
    2.  

  2.  
  3. If all circuits test normal, replace the driver door switch assembly, DDSA.
  4.  

Power Window Inoperative - Passenger's Door
  1. Ignition ON, command the passenger window motor up and down with a scan tool. The passenger window should move up and down when commanded.
    1. If the passenger window does not move up and down, replace the passenger door module, PDM.
    2.  

  2.  
  3. Observe the scan tool driver RF window switch parameter while activating the driver RF window switch to the up and down positions. The reading should change between up and down.
    1. If the reading does not change between up and down, replace the DDSA.
    2.  

  4.  
  5. Ignition OFF, disconnect the harness connector at the passenger window switch. Test for less than 5.0 ohms of resistance between the passenger window switch ground circuit terminal 2 and ground.
    1. If greater than the specified range, test the ground circuit for an open/high resistance.
    2.  

  6.  
  7. Connect the harness connector at the passenger window switch. Observe the scan tool Front Passenger Window Switch parameter while activating the passenger window switch to the up and down positions. The reading should change between up and down.
    1. If the reading does not change between up and down, test the appropriate power window switch signal circuit for an open/high resistance. If the circuits test normal, replace the passenger window switch.
    2.  

  8.  
  9. If all circuits test normal, replace the PDM.
  10.  

Removal & Installation

CAUTION
Disconnect the power window switch when working inside the driver's door. When operated, the Express Down Feature allows the door window to drop very quickly, without stopping, which could cause personal injury.

Window Motor & Regulator

NOTE
Important: The regulator and the motor are serviced as an assembly.

  1. Remove the door trim panel.
  2.  
  3. Remove the water deflector.
  4.  
  5. Remove the radio speaker assembly from the door.
    1. Disconnect the electrical/audio connector.
    2.  
    3. Remove the speaker retaining screws.
    4.  

  6.  
  7. Remove the plugs from the window clamp sight access holes.
  8.  
  9. Remove the door window.
  10.  
  11. Disconnect the regulator motor electrical connector.
  12.  
  13. Remove the front plug from under the bottom of the door.
  14.  
  15. Mark the location of the regulator to aid in reassembly.
  16.  
  17. Remove the nuts from the regulator lower channel studs.
  18.  
  19. Remove the nuts from the regulator motor studs.
  20.  
  21. Remove the regulator rose bud clip from the door.
  22.  
  23. Remove the nuts from the upper regulator channel studs.
  24.  
  25. Fold the regulator and remove the regulator through the door inner opening.
  26.  

To install:


CAUTION
Disconnect the power window switch when working inside the driver's door. When operated, the Express Down Feature allows the door window to drop very quickly, without stopping, which could cause personal injury.

  1. Adjust the regulator jack screws to match the old regulator if replacing the regulator.
  2.  
  3. Fold the regulator and insert the folded regulator into the door with the motor forward.
  4.  
  5. Position the motor studs through the door inner panel.
  6.  
  7. Install the nuts to the motor studs.
  8.  
  9. Tighten the window regulator motor nuts to 89 inch lbs. (10 Nm).
  10.  
  11. Install the regulator channel studs through the holes in the door.
  12.  
  13. Install the nuts to the regulator channel studs in the following order:
    1. Upper forward
    2.  
    3. Lower forward
    4.  
    5. Upper rearward
    6.  
    7. Lower rearward
    8.  

  14.  
  15. Install the regulator rose bud clip to the door.
  16.  
  17. Tighten the window regulator channel stud nuts.
  18.  
  19. Tighten the regulator channel stud nuts to 89 inch lbs. (10 Nm).
  20.  
  21. Connect the electrical connector to the motor.
  22.  
  23. Reconnect the window switch and raise the regulator to the full up position.
  24.  
  25. Install the window.
  26.  
  27. Adjust the window to align with door opening.
  28.  
  29. Install the plugs in the window clamp sight access holes.
  30.  
  31. Install the uppermost screw mounting the speaker assembly to the door.
  32.  
  33. Install the remaining screws in a criss-cross pattern.
  34.  
  35. Tighten the door speaker assembly screws.
  36.  
  37. Connect the electrical/audio connector.
  38.  
  39. Install the water deflector.
  40.  
  41. Install the door trim panel.
  42.  
  43. Check the window fit, adjust as necessary.
  44.  
  45. Install the access plugs into the bottom of the door.
  46.  
  47. Reinitialize the windows.
    1. Close the door for the window being reinitialized.
    2.  
    3. Turn ON the ignition, with the engine OFF.
    4.  
    5. Run the window to the full up position and hold the switch continuously for a minimum of 0.5 seconds.
    6.  
    7. Run the window to the full down position and hold the switch continuously for a minimum of 0.5 seconds.
      NOTE
      The reinitialization of the power windows will be necessary anytime a door module has been disconnected, replaced, or the vehicles battery has been disconnected or discharged. The power window will be reinitialized when the door module learns the full up and full down positions.

    8.  

  48.  

Window Switch
  1. Use a flat bladed tool to release the bezel from the door panel.
  2.  
  3. Disconnect the electrical connections.
  4.  
  5. Use a flat bladed tool to release the switch from the bezel.
  6.  

To install:

  1. Install the switch into the bezel.
  2.  
  3. Reconnect the electrical connection.
  4.  
  5. reinstall bezel to door panel.
  6.  

 
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