Q: Q: door lock problem

asked by on

The doors warning comes up on the display above the mileage. Then all the doors start unlocking and locking themselves in no particular order and it happens constantly, few times a minute

My car has 120000 miles.
My car has an automatic transmission.

Hello. There is a computer that controls the door locks and the warning light that you see. It is known as the Body Control Module. Something has likely gone wrong with this module, which may or may not be repairable. To read and control the module, you will need to use a manufacturer or high quality scan tool. It will be able to read any bad voltage levels, and give insight to what is going on with the module. If there has been a programming issue, you may be able to have it programmed. If the BCM has failed altogether, you will need to replace it. With the different sensors that feed into the module, and the different components that are being effected, you should be prepared for the module to have to be replaced. Its highly likely considering the symptoms. Have the module scanned and take it from there.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: door lock problem

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a code P0171 and needs repairs.

Hi there. The code P0171 is caused by the engine getting too hot and not having enough fuel to burn. Check the fuel injectors, fuel pressure, and the fuel pump to see if they are working properly. Since the vehicle...

Q: Crankshaft replacement fit? 2006 Hummer H3

Hello - the crankshaft on the 3.7l LLR engine does in fact have the same stroke as the L52 3.5l engine in your H3, so there is a good chance it is compatible. Check with your Hummer parts specialist for...

Q: Locks don’t all work, might be electric problem

The door latch assembly has a lock actuator as part of it. The complete assembly, except for a couple internal pieces, is made of plastic and doesn't last as long as it used to when it was made of metal....

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.