Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Test Description
The numbers below refer to the steps on the diagnostic table.
If the sunroof switch open signal circuit is jumpered first, this may cause the window to express open. Jumpering the sunroof switch close signal circuit will halt the express open feature. To close the sunroof glass the sunroof switch close signal circuit will need to be jumpered again, and maintained to continue to close the sunroof glass.
Disconnecting the connector to the Sunroof Opening Position Switch (SOPS), and shorting the SOPS vent signal circuit to the SOPS low reference circuit, will simulate that the glass is in a position other than full vent or full open position. This will allow any request from the sunroof switch to supply an output to drive the motor for testing the status of the SOPS.
Checking the sunroof motor open and close output circuits, when idle both should be at ground potential.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.