The most common culprit when you're Mustang power door locks stop working is because of a seized up door lock actuator. This not only keeps you from locking the car with the door lock switch it can also keep you from locking the door with a key. We all love our Mustangs so keep it and your belonging safe. Make sure your door lock actuators are functioning properly.
A door lock actuator is a small electric device that controls the locking and unlocking of doors in a Mustang with power door locks.
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