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.
Passenger's Door Key Unlock Switch Circuit
Turn ignition off and disconnect ATS ECU connector. Unlock passenger's door with key. Ensure continuity exists between ground and ATS ECU connector terminal A15 (with power door locks, White/Blue wire) or No. 10 (without power door locks, White/Blue wire). If continuity is not present, repair open in unlock switch circuit. If continuity is present, lock passenger's door and ensure continuity is not present. If continuity is present, repair short in unlock switch circuit. If continuity is not present, replace ATS ECU and retest.
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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.