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.
Circuit/System Description
The power sunroof is operated by the sunroof motor/actuator which consists of the motor and electronic control unit as a complete assembly. The system is powered by a battery supply circuit and an ignition/retained accessory power signal circuit determines when the sunroof may be operated. The switch signal circuits are supplied battery voltage through a resistor and monitored within the ECU. When a sunroof switch is pressed the switch signal circuit is closed to ground and most of the voltage supplied to the signal circuit will be dropped across the resistor within the ECU indicating the switch is active.
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.