Power Sunroof Inoperative
POWER SUNROOF INOPERATIVETEST DESCRIPTION
Step 1:
Steps 2 - 5:
Steps 6 - 10:
Steps 11 - 12:
Steps 13 - 14:
Steps 15 - 19:
Steps 20 - 26:
Steps 27 - 31:
Steps 32 - 37:
Steps 38 - 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.