Power Sunroof

The optional Power Sunroof is supplied power from two sources. One is the F21 circuit, which also powers the power windows. This circuit is protected by a 20 Amp circuit breaker located in cavity 19 of the junction block.

The circuit breaker receives its feed from the ignition switch on the A2 circuit. This circuit is HOT when the ignition switch is in the RUN position.

The second power source is from the M1 circuit. This is the Ignition-Off Draw (IOD) circuit and is HOT at all times protected by a 10 Amp fuse located in cavity 5 of the junction block.

Ground for the power sunroof and the control module is supplied on circuit Z1. This circuit terminates at the instrument panel left side cowl.

Ground for the sunroof is provided on circuit Z1. This ground terminates at the Airbag Control Module (ACM) bracket.

When the operator selects the OPEN function, voltage is provided on the Q41 circuit from the control module through the CLOSED switch and to the Q44 circuit. Circuit Q44 is the switched ground back to the control module.

The control module then activates the motor and moves the sunroof to the desired position. A position sensor is used to prevent the sunroof from being moved to far in any one direction. When the sensor detects the roof is at the end of its travel it sends a signal to the control module and voltage is shut off to the motor.

When the operator selects the CLOSE function voltage is provided on the Q42 circuit from the control module through the CLOSED switch and to the Q44 circuit. Circuit Q44 is the switched ground back to the control module.

The control module then activates the motor and moves the sunroof to the desired position. A position sensor is used to prevent the sunroof from being moved to far in any one direction. When the sensor detects the roof is at the end of its travel it sends a signal to the control module and voltage is shut off to the motor.

When the operator selects the VENT function, voltage is provided on the Q43 circuit from the control module through the CLOSED switch and to the Q44 circuit. Circuit Q44 is the switched ground back to the control module.

The control module then activates the motor and moves the sunroof to the desired position. A position sensor is used to prevent the sunroof from being moved to far in any one direction. When the sensor detects the roof is at the end of its travel it sends a signal to the control module and voltage is shut off to the motor.