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.

First find out if the door lock actuator works in any mode i e. 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. Replace the key fob. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door.

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. Is your power door lock actuator bad. Here s how a body control module power door lock system works. If your power locks work intermittently via the key fab or controls inside this will 100 fix your iss.

Here are some common reasons the actuator wears out and how much it costs to replace one. You don t want to be kicking yourself later because you missed something so obvious. If all of the door locks are inoperative start your diagnosis at the fuse box. The only part that these two have in common is the master switch.

Impala power door lock actuators are known to go bad. If that doesn t solve the problem you may have a faulty key fob. However vehicles without door lock cylinders will not be able to lock or unlock the doors until power is restored. Go to a dealer and they will.

Power door locks can break down over time because of a worn out actuator. And although you expect things like your power door locks to work without fail that isn t always the case. Does it work with the door switches but not the remote key fob. Diagnose power door locks don t work properly part 2 by reiner continued from part 1 power door lock repair tips tricks.

The actuator consists of a motor gears and a cable that extends or retracts to lock and unlock the doors. There are several ways to find out if you have a bad power door lock actuator. 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. 7 fixes to try if your car s power door locks won t work 1.

The most likely cause of your problem is the master switch in the drivers door. That s where most wire breaks occur. 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. 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.

Here s a power door lock wiring diagram for a 2009 chevrolet malibu. Power door locks that do not function are another common symptom for a problem with the door lock relay.