Skip the auto shop - Our mechanics make house calls

Q: Trouble using the locks on the doors

asked by on

My driver's side door won't lock. Also, the unlocking system won't unlock or lock the doors.

A: If all of the doors are not locking and unl...

If all of the doors are not locking and unlocking at all, then most of the time it is caused by a bad main switch on the driver side door. This switch supplies power to all of the locks, and if it fails, this will occur. It can also be a wiring issue, but the switch is most likely. I typically take a voltage meter and take the door apart and check the voltage going to each switch. If there is voltage at the switches and at the doors then the actuators may be bad. If you are going to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your lock issue and replace the door lock switch for you if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Will a tear in the air filter make a humming/fluttering sound?

Hi there, thanks for writing in. A tear in the air filter can make a fluttering noise. Another possible source of the noise is the DISA valve at the top of the intake manifold. The DISA valve is what controls...

Q: Water pump possibly leaking.

The leak would have to be identified by pressure testing the cooling system to see what is leaking. I have seen radiators leak soon after replacement. Have your mechanic pressure test and check the system for leaks. If the leak...

Q: Key won't unlock car anymore

The latch inside the door is locked and unlocked by a lock actuator. The latch or lock actuator has likely bound up, and will need to be accessed get the door open. If this is the case, the inside door...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...