Q: Front doors not locking with fob.

asked by on January 12, 2016

I have two things wrong with my car. First off, when I press the fob I can hear the rear doors locks, but not the front doors. From the front door arm controls, the back door locks work but not the front doors. I have to manually lock the passenger's side door and use the key to lock the driver's side front door. Second, I have two warning lights on the dashboard: Check Tire Pressure and the Air Bag light.

Power door locks are not working Inspection $79.99 - $99.99 Get a Quote

The front door lock actuators are controlled by the their respective door switch units. The rear lock actuators are controlled by the Body Control Module. When the key fob is pressed to lock or unlock. The Body Control Module receives the request and then locks/unlocks rear doors and sends a signal to both the drivers door and passenger front door switch assemblies over a computer data line to lock/unlock front doors. Since the rear door locks are operating, one of two things is happening, either the door lock/unlock request is being interrupted on the computer data line or the Body Control Module is not sending the request to lock/unlock doors to the data line. One way to see if the problem lies with the data line or the Body Control Module is to try to lock or unlock all doors from the driver’s door switch. If the rear doors do not lock/unlock then the data line to the Body Control Module is open and will need to be traced to locate the open circuit and repaired. You may want to enlist the help of a mechanic, like one from YourMechanic who can scope out the data line to see if the signal is being interrupted and to locate and repair the open circuit.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

Check engine light came on and oil gauge at 0. But digital dash reading shows 58% life remaining. Oil level is good. Bad sensor?

Hi Megan. Thanks for contacting us today. If the check engine light has come on, this could indicate an oil pump failure, or oil sensor issue. In order to correctly diagnose the root issue, an on-site inspection would be required....

Can it hurt my car if i drive it with the battery saver active light on?

Hi There, The battery saver active light indicates that the system has detected that the battery charge is low, which generally means either the battery itself is weak or that the charging system is not properly charging the battery and...

Rough idle, thermostat code

I'm guessing the codes is P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). The code and the symptoms you are experiencing may or may not be related. The powertrain control module (PCM) determines operating temperature via the signal from...

Check engine light flash with starting the car

The Check Engine light should illuminate when you turn the key on, and then go off after the engine is started. If it comes on anytime the engine is running, the vehicle's computer has noticed an emissions related problem. ...

Blown engine

Check you dipstick to make sure that the proper amount of oil was installed. It's possible that someone forgot to re-fill the engine oil. It could also just be a coincidence that the Check Engine Light came on after the...

My Speed Sensor is not working-

Sensors are made of plastic and plastic doesn't like to be warmed and cooled. Which is exactly what is happening you your car everyday. Normally, plastics will last a 100,000 miles or so. With a new sensor, it is not...

Replaced sway bar links and bushings. Still making a clunking sound. Sway bar feels loose when pulled on and can hear the sound.

You should not be able to physically manipulate the sway bar. If you are able to do so, there is something wrong with the bar, the links, bushings, the attachment to the frame or other suspension components. Whatever the fault...

Whistling noise over 40mph, car downshifts hard - 1996 Chevrolet K2500 Suburban

The transmission on these vehicles have many different possible problems and it sounds like you have an overrunning clutch bearing that is bad, which is causing it to make noise after 40mph. The problem downshifting may also be due to...

Car not staying in gear

Hi. You did not mention if you had an automatic or manual transmission. This can be caused by two different problems. The first cause could be that the transmission mounts allow movement of the transmission and knocks it out of...

Related articles

How Do I Take Care of My New Tires?
You’ve You’ve equipped your car with a brand new set of tires, replacing the old set of worn out rubber. They were noisy, and every time you had to brake hard, you were losing traction. Now you’ve spent your hard-earned...
How Do I Take Care of My New Tires?
You’ve You’ve equipped your car with a brand new set of tires, replacing the old set of worn out rubber. They were noisy, and every time you had to brake hard, you were losing traction. Now you’ve spent your hard-earned...
2012 Chevrolet Malibu vs. 2012 Ford Fusion: Which One Should I Buy?
When you want a midsize sedan, you’re looking for something that will offer you the best fuel economy for the size as well as additional safety features that will keep your family safe while you’re driving across town or around...