GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal 🢒 Body and Accessories 🢒 Roof 🢒 Sunroof Wiring Harness Replacement

Removal Procedure

    Important: Note the following locations:

       • The position of the wire harness routing.
       • The location of the tie-straps that secure the harness to the drive cables and the sunroof module.

  1. Position the sunshade in the full forward position.
  2. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  3. Disconnect the electrical connector from the control switch.
  4. Disconnect the electrical connector from the express module.
  5. Disconnect the electrical connector from the actuator.
  6. Remove the wire harness from the sunroof.

Installation Procedure
  1. Install the wire harness to the sunroof.
  2. Connect the electrical connector to the actuator.
  3. Connect the electrical connector to the express module.
  4. Connect the electrical connector to the control switch.
  5. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  6. Inspect the sunroof for correct operation.