Again if one door doesn t work but others do the problem could be with the door lock solenoid.
Sometimes power locks dont work on one door.
The switch provides power to the door lock solenoids.
Inside each of your car s doors is a hard working motor that locks and unlocks them with each push of a button.
Go to a dealer and they will.
Replacing it may require removing the car door panel.
If that doesn t solve the problem you may have a faulty key fob.
If you seen battery voltage operated the switch and check for power coming into the control coil on either the lock or unlock relay.
Actuator usually to blame for broken power locks.
Power door locks can break down over time because of a worn out actuator.
Replace the key fob.
To lock the doors the switch provides voltage to the two terminals of the solenoid.
Note though that some types of intermittent failures can be extremely challenging even for professional technicians to find and repair so if an intermittent fault is suspected repeat all resistance and continuity tests on all wiring while vigorously wiggling the wiring until the fault is found and repaired.
A fuse is blown.
The power door locks utilize individual solenoids in each of the doors that activate the door lock mechanism.
If one door doesn t work but others do the problem could be a blown fuse.
The solenoid is bad.
The power door locks are all inoperative or a single door lock is inoperative.
This is a cheap and easy fix.
You don t want to be kicking yourself later because you missed something so obvious.
Diagnose those early power door locks start by checking the fuse.
And although you expect things like your power door locks to work without fail that isn t always the case.
7 fixes to try if your car s power door locks won t work 1.