Q: Dome light will not come on, but floor lights do - 1995 Nissan 300ZX

asked by on

When I open my car’s door, the dome light doesn’t come on, however the floor lights do come on and off, as the door is opened and closed. When I move the dome light switch to ‘on’ it does come on, but when I move it to the door position, nothing happens. I replaced the bulb and made sure it was an exact replacement. I was also told to replace the room lamp relay. I studied the maintenance manual and it showed that the control unit that the relay plugs into is in back of the driver’s seat on the trunk side. I then took everything apart and only found the fuel pump control unit without any relays plugged into it. After that, Nissan sent me a newer diagram which showed the control unit under the driver’s seat. So… I took the driver’s seat out, but… nothing there!! Can you tell me where to find it?

A: I hate not being able to help you with this...

I hate not being able to help you with this. This is a very Nissan specific issue you are having. As I was reading your question, my initial thought was the door switch, but you said other lights are being triggered on the floor, so that rules out the door switch. I am curious who it is that is telling you to look for the control unit. Sometimes with extreme vehicle specific questions, it doesn't hurt to jump into a forum or a facebook group, where hardcore enthusiasts are always found. I know your vehicle must have a decent sized community. It sounds like you've already been in contact with Nissan, so I am surprised that no one on their end can answer this question for you. I wish you the best of luck, I know electrical problems can be some of the most difficult.

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: Opinion on Citroen make

Yes I have a long time ago. They haven't sold French cars in the United States for a long time. They are interestingly designed cars. There is no argument there. They are modern designs but I wouldn't buy one. From...

Q: Why does a chime sound when my headlights are on, the engine is off and the driver’s door is open?

The reminder system in your Altima is there to help ensure that you don’t forget small but critical things like buckling your seat belt or taking the key out of the ignition when you leave the car. You’ll also hear...

Q: How do I turn on the high-beams?

The high-beams are extra-bright headlights that can allow you increased visibility when it is dark out. To turn on the high-beams, push the turn signal lever (which protrudes from the left side of the steering column) towards the front of...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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.