Isuzu Ascender 2003-05

Door Glass & Regulator

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Power Windows



Diagnosis & Testing
  1. Check all fuses.
  2.  
  3. Inspect battery condition and connections.
  4.  
  5. Inspect all grounds are clean and tight.
  6.  
  7. Search for applicable service bulletins.
  8.  
  9. Install a scan tool. Verify that the scan tool powers up.
  10.  
  11. Monitor the Driver Window Status Data parameter in the driver door module (DDM) inputs list.
  12.  
  13. Activate the driver power window switch in the up and down positions. Does the Driver Window Status Data parameter change accordingly-
  14.  
  15. Check for voltage and ground at driver-s window motor and switch.
  16.  

Removal & Installation
Motor & Regulator
  1. Remove the door trim panel.
  2.  
  3. Remove the speaker.
  4.  
  5. Remove the water deflector.
  6.  
  7. Loosen the regulator window carrier bolts.
  8.  
  9. Raise and support the window.
  10.  
  11. Disconnect the electrical connector from the regulator motor.
  12.  
  13. Loosen the upper 2 bolts that retain the regulator assembly to the door.
  14.  
  15. Remove the remaining 3 bolts that retain the window regulator assembly and the motor to the door.
  16.  
  17. Lift the regulator assembly upward in order to release the upper 2 bolts.

    Click image to see an enlarged view

    Fig. Regulator and mounting bolts

  18.  
  19. Rotate the upper portion of the regulator assembly forward.
  20.  
  21. Beginning with the lower portion, remove the regulator assembly through the door opening.
  22.  
  23. Place the regulator assembly on a prepared surface.
  24.  
  25. Remove the upper 2 bolts from the regulator assembly.
  26.  
  27. If replacing the window motor remove the bolts that hold the motor to the window regulator.
  28.  
  29. Remove the window regulator motor from the window regulator.

    Click image to see an enlarged view

    Fig. Window motor removal

  30.  

To install:

  1. Install the window regulator motor to the window regulator.
  2.  
  3. Install the bolts retaining the window regulator motor to the window regulator.
  4.  
  5. Partially install the upper 2 bolts to the regulator assembly.
  6.  
  7.  Beginning with the upper portion, install the regulator assembly through the door opening in a semi-horizontal position.
  8.  
  9. Position the regulator assembly fully forward into the door cavity.
  10.  
  11. Rotate the regulator assembly to a vertical position.
  12.  
  13. Lower and hang the regulator assembly onto the door sheet metal using the upper 2 bolts that were previously installed.
  14.  
  15. Install the bolt that retains the motor to the door.
  16.  
  17. Tighten bolts to 80 inch. lbs. (9 Nm).
  18.  
  19. Install the remaining bolts that retain the regulator assembly to the door.
  20.  
  21. Tighten bolts to 88 inch. lbs. (10 Nm).
  22.  
  23. Connect the electrical connector to the regulator motor.
  24.  
  25. Remove the window support and lower the window onto the regulator window carrier.
  26.  
  27. Loosely tighten the regulator window carrier bolts.
  28.  
  29. Operate the window upward to the full up position, ensuring the window remains in the run channels.
  30.  
  31. Tighten the regulator window carrier bolts to 88 inch. lbs. (10 Nm).
  32.  
  33. Install the water deflector.
  34.  
  35. Install the speaker.
  36.  
  37. Install the door trim panel.
  38.  

Switch
  1. Lift up on the front edge of the switch panel in order to release the front retaining clip.
  2.  
  3. Lift up on the rear edge of the switch panel in order to release the 2 rear retaining clips.
  4.  
  5. If equipped, disconnect the electrical connectors from the driver door module (1).
  6.  
  7. If replacing only the driver door module, remove the module from the door trim panel.
  8.  
  9. Disconnect the remaining electrical connectors from the switch panel.
  10.  
  11. If replacing only the switch panel, retain the driver door module for transfer.
  12.  
  13. Remove the switch panel assembly from the vehicle

    Click image to see an enlarged view

    Fig. Switch panel assembly removal

  14.  

To install:

  1. Install the driver door module (1) to the door trim panel.
  2.  
  3. Connect the electrical connector to the driver door module.
  4.  
  5. If replacing the switch panel, connect the remaining electrical connectors.
    NOTE
    When replacing the driver door module, the set up procedure must be performed.

  6.  
  7. If replacing the driver door module, program the driver door module.
  8.  
  9. Install the switch panel to the door trim panel, ensuring the front and rear retaining clips are fully seated.
  10.  

 
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