The power sunroof system consists of the following components:

The power sunroof will operate with the ignition switch turned to Accessory or RUN. Once the ignition switch is turned to OFF the sunroof will continue to operate until any door is open or when the Retained Accessory Power (RAP) has timed out. For a description and operation of the RAP operation, refer to Retained Accessory Power (RAP) Description and Operation in Retained Accessory Power.

Use the rocker type sunroof switch, located in the front center of the headliner, to command the sunroof to :

Pressing the sunroof switch, rearward portion, the sunroof glass will slide from:

Pressing the sunroof switch, forward portion, the sunroof glass will slide from:

To open the power sunroof to the vent position from the closed position, turn the ignition to ON, with engine OFF. Press and hold the forward portion of the sunroof switch. This will apply the sunroof switch low reference to the sunroof switch close signal circuit, 5 volt reference, input to drop to 0 volts. As long as the sunroof module sees a constant input of 0 volts at the sunroof switch close signal circuit input, the rear portion of the sunroof glass will raise upward to the full vent position. The sunroof glass will soft stop at the full vent position based on the inputs from the sunroof limit switches. To stop the sunroof glass in a position other than the full vent position, release the sunroof switch when the sunroof glass reaches the desired vent position. The sunshade will have to manual slid open.

To close the power sunroof from the vent position, turn the ignition ON, with the engine OFF. Press and hold the rearward portion of the sunroof switch. This will apply the sunroof switch low reference to the sunroof switch open signal circuit, 5 volt reference, input to drop to 0 volts. As long as the sunroof module sees a constant input request of 0 volts at the sunroof switch open signal circuit input, the sunroof glass will continue to lower downward to the closed position. The sunroof glass will soft stop at the closed position based on the inputs from the sunroof limit switches. The sunshade will have to be manually slid closed.

The express open will work only with the glass in between the closed and partially open positions. To express open the power sunroof, turn the ignition ON, with engine OFF. Press the rearward portion of the sunroof switch once. This will apply the sunroof switch low reference to the sunroof switch signal open signal circuit, 5 volt reference, input to drop to 0 volts momentarily. The momentary 0 volts input to the sunroof module indicates an express open request. The sunroof glass will lower slightly, then begin to automatically express open between the roof and headliner. The sunroof glass will soft stop at the full open position based on the inputs from the sunroof limit switches. As the sunroof glass expresses open so will the sunshade. To stop the sunroof glass in a desired position other than to the express open position, as the sunroof is expressing open, press the sunroof switch again, in either direction, to stop the movement.

To close the power sunroof from the open position is the same as to opening to the vent position. Turn the ignition ON, with the engine OFF. Press and hold the forward portion of the sunroof switch. This will apply the sunroof switch low reference to the sunroof switch close signal circuit, 5 volt reference, input to drop to 0 volts. As long as the sunroof module sees a constant input request of 0 volts at the sunroof switch close signal circuit input, the sunroof glass will continue to the closed position. The sunroof glass will soft stop at the closed position based on the inputs from the sunroof limit switches. The sunshade will have to be manually slide closed.

The sunroof has a bi-directional motor. When the motor is not operating both sunroof motor control circuits are grounded. When the motor drives the sunroof glass in the direction from the vent to closed or closed to open position, the following occurs:

When the motor drives the sunroof in the direction from the open to closed or closed to vent position, the following occurs:

The sunroof module is equipped with a timer circuit which stops the operation of the sunroof motor after 8 seconds.

The sunroof opening position switch/sunroof position encoding system switch tracks various positions of the sunroof glass through its travel between full vent to full open.

The sunroof module monitors the sunroof limit switches LS1, LS2 and LS3 inputs. As a sunroof limit switch closes, the sunroof limit switch circuit, 5 volt reference, will be shorted to the sunroof limit switch low reference circuit, pulling the reference voltage to 0 volts. The sunroof module understands the position of the sunroof glass based on the multiple input combinations to the limit switch inputs. The various inputs allow the sunroof module to bring the sunroof glass to a soft stop when it reaches the full vent, full open or closed positions.