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.
Description & Operation
The power door lock system uses switches to lock and unlock all vehicle doors simultaneously from any of 3 switches. Two of the switches are located on the inner door panels. The third switch is within the driver's door lock assembly, and actuated with a key. Major components of the system are 3 switches, 2 relays, wiring, and a door lock actuator in each door. See Fig 1 .
When a door lock switch is in the lock position, current energizes the lock relay, which supplies current to the door lock actuators, causing the doors to lock. When a door lock switch is in the unlock position, current energizes the unlock relay, which supplies current to the door lock motors, causing the doors to unlock.
Wagons are equipped with an electric liftgate release. A switch supplies current to the release motor.
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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.