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Jay
Jay, Certified Infiniti Technician
Category: Infiniti
Satisfied Customers: 20073
Experience:  20+years, Nissan and Infiniti experience and currently now working for a Infiniti Dealer
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My name is ***** ***** and I have a taillight issue with my

Customer Question

Hi Ryan, my name is ***** ***** and I have a taillight issue with my 2002 G20. A couple weeks ago I had a small collision which separated the rear bumper from the vehicle. At that time the 7.5 taillight fuse blew. I have replaced the fuse, but still have no taillights. The marker lights on the sides of the bumper were separated and the wires are hanging loose from the vehicle. Do I have a grounding issue keeping my taillights from working? The break lights work just fine.
JA: Thanks. Can you give me any more details about your issue?
Customer: After I replaced the fuse, it has not blown again, which leads me to believe the circuit is not grounded out, but needs a ground for the lights to be functional??
JA: OK got it. Last thing — Infiniti Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Infiniti
Expert:  Jay replied 1 year ago.

Hello my name is ***** ***** thank you for your question.

Did you check to see if that fuse blew again?

Customer: replied 1 year ago.
it has NOT blown again.
Expert:  Jay replied 1 year ago.

Do you have a Test Light?

Expert:  Jay replied 1 year ago.

or volt meter?

Can you read a wiring diagram?

Customer: replied 1 year ago.
I used a test light on the wires that used to be connected to the marker lights. I used the body for ground and tested both wires on each side. I didnt get a light on any of the wires. I checked the fuse and it is still good.
Expert:  Jay replied 1 year ago.

You check both sides of the back of the fuse with the test light?

Customer: replied 1 year ago.
No I just visually checked the fuse.
Expert:  Jay replied 1 year ago.

We need to see if that fuse is getting power. So we need a Test light to check to see if the fuse is getting power.

Local auto parts stores should have one if you can pick one up

Customer: replied 1 year ago.
Ok. I have one, I will check it tomorrow after work.
Expert:  Jay replied 1 year ago.

ok.. Talk to you tomorrow then after you check.

Customer: replied 1 year ago.
Used a test light on the fuse panel. There is power at the taillight fuse. Tried a different fuse, still nothing. I should add that the dash lights also went out at the same time.
Expert:  Jay replied 1 year ago.

You had power on both sides of the fuse?

Customer: replied 1 year ago.
No just one side
Expert:  Jay replied 1 year ago.

You need to check both sides of the fuse for power, not just the one side.

Customer: replied 1 year ago.
I had power on the right side (closest to the steering column)
Expert:  Jay replied 1 year ago.

You checked both sides of the fuse, but only one side had power?

Customer: replied 1 year ago.
Correct
Expert:  Jay replied 1 year ago.

You are testing it with the fuse inserted right? and using the test light on the back side of the fuse? See image

Customer: replied 1 year ago.
Ok, I pulled the fuse, and checked where the fuse plugs in. There was power on one side. I did NOT use the test light on the fuse when it was plugged in.
Expert:  Jay replied 1 year ago.

ok.. Then lets check with the fuse in place and lights on..

Customer: replied 1 year ago.
Finally got to check the fuse. There is power to both sides of the fuse, key on, lights on.
Expert:  Jay replied 1 year ago.

Ok then. So now with that information. The rear tail lights, Lic Plate Lights and front parking lights all don't work correct?

Customer: replied 1 year ago.
That is correct, as well as the dash lights. They dont work either.
Expert:  Jay replied 1 year ago.

Head lights work?

Customer: replied 1 year ago.
they do, everything else seems to work, brake lights work.
Expert:  Jay replied 1 year ago.

There is a Head Light Battery Saver control unit, that the switch applies power to and this control unit turns the lights on.

Do you have a volt meter? Can you read a wiring diagram?

Customer: replied 1 year ago.
I can borrow a volt meter, and I do ok at reading wiring diagrams
Expert:  Jay replied 1 year ago.

That is the wiring diagram, and i also provided the harness layout so you can locate connectors to help you.

Do you have any more questions on this?

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