Power Door Lock Will Not Work

For vehicles equipped with door lock cylinders the door can still be opened using the key.

Power door lock will not work.

Power door locks can break down over time because of a worn out actuator. Power door locks that do not function are another common symptom for a problem with the door lock relay. Apart from what has been stated in part 1 diagnosing problems with power door locks is not always a straightforward affair but one way to avoid confusion and misdiagnoses is to approach the problem logically. The most likely cause of your problem is the master switch in the drivers door.

Here s how a body control module power door lock system works. Does it work with the door switches but not the remote key fob. There are several ways to find out if you have a bad power door lock actuator. And although you expect things like your power door locks to work without fail that isn t always the case.

If your power locks work intermittently via the key fab or controls inside this will 100 fix your iss. Go to a dealer and they will. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door. Inspect the fuse that protects the door lock circuit to ensure it is not blown.

Here s a power door lock wiring diagram for a 2009 chevrolet malibu. The actuator consists of a motor gears and a cable that extends or retracts to lock and unlock the doors. You don t want to be kicking yourself later because you missed something so obvious. If the relay and switch are working properly but you re not getting power and ground at the door lock actuator check the wiring harness in the hinge area of the door.

If the door lock actuator doesn t work with any method then the problem can be the door lock. If the electric motor or the mechanism inside the door lock actuator wears out the door lock may lock or unlock slowly or work sometimes but not all the time. If the power door lock relay fails it will cut off power to the entire power door lock system and may cause them to not function correctly. Diagnose power door locks don t work properly part 2 by reiner continued from part 1 power door lock repair tips tricks.

First find out if the door lock actuator works in any mode i e. Impala power door lock actuators are known to go bad. 7 fixes to try if your car s power door locks won t work 1. In some cars a door lock actuator becomes noisy and produces a squeaking or buzzing noise when the power door locks are locked or unlocked.

That s where most wire breaks occur. Replace the key fob. However vehicles without door lock cylinders will not be able to lock or unlock the doors until power is restored. The only part that these two have in common is the master switch.

The windows and the locks are on two separate circuits. Is your power door lock actuator bad.