Removal Procedure

Important: 

• The sunroof Positioning Encoding Switch (PES) (3) is aligned to the drive cables. The PES switch comes from the factory set to the glass panel CLOSED position. A position lock pin (1) has been installed on the top of the PES switch. This pin (1) must remain until after the installation of the actuator and of the PES switch. This lock pin locks the drive gears in place and must be removed before operation of the sunroof module.
• If you reuse a PES switch, place the sunroof glass panel in the CLOSED position. Install the sunroof timing pins J 41718  . Install a position lock pin, or install 2 wires, such as the ends of a paper clip, then remove the PES switch from the sunroof module. The PES switch timing will be lost if you do not follow this procedure.
  Fig 1: View Of Positioning Encoding Switch, Lock Pin, And Screw

  Courtesy of GENERAL MOTORS CORP.

1. Position the sunroof glass panel to the closed position.
2. Remove the sunroof module from the vehicle. Refer to Power Sunroof Module Replacement .

   Important:  Before removing the PES switch from the sunroof module, the J 41718  sunroof timing pins must be installed to lock the cable/cam mechanism into position.

3. The cable mechanisms and/or the cam mechanisms, on both sides of the glass, contain a set of timing holes. These holes are aligned to the sunroof glass panel in the CLOSED position. Remove the left and right side front sunroof glass panel screws.

   Align the timing holes. Use a flat-bladed tool to push the cable mechanism and/or the cam mechanism forward or rearward.

   Install the J 41718  sunroof timing pins into the left and right sunroof glass panel screw holes. If you remove the PES switch, install the position lock pin, or install 2 wires, such as the ends of a paper clip, to the PES switch.

4. Remove the sunroof actuator. Refer to Sunroof Actuator Replacement .
5. Disconnect the electrical connector from the PES switch (3).
   Fig 2: View Of Cable And Cam Mechanisms

   Courtesy of GENERAL MOTORS CORP.
6. Remove the PES switch screw (2) from the switch.
7. Hold down on both drive cables, and lift straight up to remove the PES switch from the sunroof module.
   Fig 3: View Of Positioning Encoding Switch, Lock Pin And Screw

   Courtesy of GENERAL MOTORS CORP.