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 advanced parking assist switch is part of the A22 Radio Control. It is a normally open switch that closes when the switch is pressed. The K9 Body Control Module monitors the switch on signal circuit 3161 and the switch receives a constant ground on ground circuit 1851. When the advanced parking assist switch is not pressed, the switch is open and signal voltage observed by the K9 Body Control Module is high. When the parking assist switch is pressed, the switch is closed and signal voltage observed by the K9 Body Control Module is low.
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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.