Q: Door ajar light on and doors only manually lock

asked by on

The front panel is displaying that a door is ajar. All the doors will manually lock by the arm console. Also, there is no power to the rear wiper. Those problems have existed for several weeks and now there’s a new problem: my rear window will not lock. Even though I can use the armrest to lock the doors, it won't lock the rear window. The panel continues to display the door ajar light. What can I do to fix these problems?

All of the lock functions and rear wiper functions are controlled by the Body ECU. If the ECU is failing this could be the source of the issues. In the front door and in the rear door, there are both harness connections that flex as the door (front left or rear) is opened or closed. This can cause the harness to fatigue and wiring to break causing malfunctions as well.

Before the expense of replacing the Body ECU wiring to both the front door contact, and the rear lock actuator, the wiper motor should be checked to ensure wiring is not the issue. You may want to enlist the help of a mechanic, such as one from YourMechanic, who has the tools and training to trace and verify the source of the electrical issues, so that the correct repair can be made.

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. Door ajar light on and doors only manually lock

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: Used car issues? 2002 BMW 323xi

Hello. The issues you describe are relatively minor and likely will not require extensive repairs. A gas cap that does not lock is probably bad and will likely need to be replaced. A replacement cap can be sourced easily and...

Q: Q: Car running hot

I don’t know which engine you have, so I’ll keep this in general terms. Any number of problems can cause your engine to run hot, or overheat. First check the coolant level when the engine is cold. If it is...

Q: My windshield wipers keep stopping

The wiring in the wiper circuit should be inspected. If the wiring has a short somewhere, or even the relay or wiper switch, are allowing the wiper motor to draw too much voltage, the life span of the wiper motor...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...