Power Door Lock Will Not Work

Diagnose power door locks don t work properly part 2 by reiner continued from part 1 power door lock repair tips tricks.

Power door lock will not work.

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. And although you expect things like your power door locks to work without fail that isn t always the case. Impala power door lock actuators are known to go bad. For vehicles equipped with door lock cylinders the door can still be opened using the key.

If all of the door locks are inoperative start your diagnosis at the fuse box. The most likely cause of your problem is the master switch in the drivers door. Is your power door lock actuator bad. 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. If that doesn t solve the problem you may have a faulty key fob. Replace the key fob. Power door locks can break down over time because of a worn out actuator.

Go to a dealer and they will. That s where most wire breaks occur. 7 fixes to try if your car s power door locks won t work 1. First find out if the door lock actuator works in any mode i e.

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. The actuator consists of a motor gears and a cable that extends or retracts to lock and unlock the doors. The only part that these two have in common is the master switch. 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.

There are several ways to find out if you have a bad power door lock actuator. If your power locks work intermittently via the key fab or controls inside this will 100 fix your iss. An inoperative power door lock can be caused by the switch solenoid wiring problem or mechanical problem within the linkage of the affected door. However vehicles without door lock cylinders will not be able to lock or unlock the doors until power is restored.

Inspect the fuse that protects the door lock circuit to ensure it is not blown. The windows and the locks are on two separate circuits. Here s a power door lock wiring diagram for a 2009 chevrolet malibu. 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.

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.