General Information

The sunroof system consists of the sunroof assembly and three electrical components: the sunroof actuator, the sunroof switch, and the sunroof control module.

The sunroof assembly has three end point positions:
^ Fully closed (flush with the vehicle roof).
^ Fully open (retracted into the roof cavity).
^ Fully vented (rear of the glass raised to the limit of its travel).
^ The sunroof actuator consists of a reversible DC motor, gear train, and a limit switch.
^ The sunroof switch is a rocker-type switch with three positions:
^ Normal center OFF position.
^ FORWARD/OPEN VENT position.
^ REVERSE/CLOSE VENT position.

The sunroof control module controls the sunroof motor based on inputs from the sunroof switch and limit switch. Special features of the control module are Express Open and Express Close Vent, Stall Sense and Operation Time Out.

The express feature makes it necessary to only momentarily push the sunroof switch in the FORWARD/OPEN VENT position in order to fully open the glass or to close the glass from the vent position.

Stall Sense stops the sunroof when the sunroof assembly is obstructed or has reached the fully open position during express open.

Operation Time Out protects the sunroof against failure of the stall sense. The control module stops the operation of the sunroof assembly after a 20 second time out.