Power Sunroof Inoperative
POWER SUNROOF INOPERATIVETEST DESCRIPTION
Steps 1-7:
Steps 8-15:
Steps 16-26:
Steps 27-38:
Steps 39-45:
The numbers below refer to the step numbers on the diagnostic table.
5. Using a jumper wire to simulate operation of the sunroof to determine if the switch is at fault.
13. Disconnecting the sunroof limit switch/sunroof opening position switch harness connector and shorting the sunroof limit switch position 1-LS1 circuit, the sunroof module thinks the glass is in the closed position, allowing any request from the sunroof switch to enable an output to the sunroof motor/actuator for testing.
14. When the sunroof control module is at rest the sunroof motor/actuator open and close circuits are at ground potential. This step is testing for an output to drive the motor, when the sunroof control module should be idle.