Q: When I open my doors the interior lights don't come on.

asked by on

When i open my doors the lights do not come on, but do come on when i manually turn my dimmer switch and press the map lights. I have checked fuses and no luck, I have read about a CTM could that be my issue or could it be that the switches in the door frames are bad

Hello. Without knowing the make and model of your vehicle, it hard to definitively give insight on the exact component that has failed.

In general, when the door is opened, the switch turns on the interior lights. If the lights are not coming on, then its possible the switch has failed. It also possible there is a short between the fuse and the door switch.

Does your vehicle have a door ajar warning light, and if so does it turn on when you open the door? The door switch in question would be responsible for this warning as well, and if its not working this would indicate that the switch has gone bad or is not receiving power. The switch is used and impacted often enough that it is more likely to fail than any other component in the circuit.

You will need to test the available voltage at the door switch, and what the voltage is after the door switch is supposed to turn on. If there is available voltage before the switch, and no voltage after, you will need to replace the door switch as necessary.

If you’re unable to fix the issue, have a certified technician, like one from YourMechanic, come to your location and diagnose the electrical issue and firsthand.

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. When I open my doors the interior lights don't come on.

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: My interior and exterior lights do some sort of flickering or flashing.

Hello, thank you for writing in. When all lights and electronic components are experiencing these types of symptoms, it is often related to the connection rather than the battery itself. The cables should not have a build up of corrosion...

Q: Can a 2000 dodge caravan fuel injector wiring harness be used on a 1999 Dodge Caravan, engine being a 3.3L 6 cylinder flex fuel.

Hi there, thanks for writing in. To my knowledge, Dodge did not make significant changes from the 99 to 2000 Caravan 3.3 liter engine. However, with that being said, it's hard to know for 100% certainty that the fuel injector...

Q: Lights are flickering. Interior and exterior. What can it be?

Check the ground wire from the engine block to the chassis. It may be loose causing a loss of power return to the battery making the shortest path to the battery. Also, check all of the ground wires on the...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...