If you seen battery voltage operated the switch and check for power coming into the control coil on either the lock or unlock relay.
Power locks dont work on one door.
They keep potential thieves and burglars out of your car and make it easy for you to lock and unlock your doors in a hurry.
You push another button and they unlock.
Power door locks are the most important security element of your vehicle.
The solenoid is bad.
If the relay is getting power when you operate the power door switch but the doors don t lock or unlock check the control coil ground.
The power door locks are all inoperative or a single door lock is inoperative.
Replace the key fob.
The only part that these two have in common is the master switch.
7 fixes to try if your car s power door locks won t work 1.
You push a button and they lock.
Don t waste your time changing the power.
Then check for power at each door switch.
As a result power door locks that don t work are a little unnerving as they spell an increased security threat for your vehicle.
But even though they re a simple concept there are still a few things that could go wrong.
The windows and the locks are on two separate circuits.
If that doesn t solve the problem you may have a faulty key fob.
The switch provides power to the door lock solenoids.
Reconnect all wiring and operate the door lock manually with the switches in the dashboard console door panel.
So if your power door locks aren t working it could be due to bad wiring a bad switch or even the actuator.
One way to check if a switch is defective is to connect current from a battery charger directly to the lock actuator.
Go to a dealer and they will.
The most likely cause of your problem is the master switch in the drivers door.
To lock the doors the switch provides voltage to the two terminals of the solenoid.
Replacing it may require removing the car door panel.
Power door locks are quite simple.
You don t want to be kicking yourself later because you missed something so obvious.