4G63 4EVR

iTrader: (2)

As the title states, I noticed that my liscense plate lights were not working the other day. Actually they probably haven't been working since some idiot rear ended my car almost 2 years ago.

I am wondering if there are any quick locations to check before I start probing. I don't have a wiring diagram currently and I plan on checking that once I get home from work.

My plan is to first check the bulbs, then check the voltage at the bulbs, and then check fuses. If I don't find the problem then I am taking it back to the body shop to let them have fun with it. I'd rather just get this fixed myself.

Any suggestions welcome! Thanks...

evokid511

iTrader: (24)

yeah first check the bulbs obvisiouly then make sure there is power going to them... if theres no power there then check the wiring connections, there is a connection on the back drivers side that the licenses plate lights connect to and if thats plugged in then check fuses... hope this helps!!

jmelocik

iTrader: (153)

+1 on checking the bulbs and connection behind the bumper cover. When I did the JDM bumper swap I forgot to plug that one back in and almost got a ticket for not having plate lights.

Josh

evokid511

iTrader: (24)

haha me to thats how i figured it out!!!

4G63 4EVR

iTrader: (2)

Thanks for the suggestion on the connector on the drivers side.

I will follow up but my guess is that it is probably the connector unless the bulbs are super fragile and broke upon the collision.

evokid511

iTrader: (24)

i got in a rear end collision and my bulbs didnt crack but the connector did which made the connection become undone but with some electrical tape i was able to put the two ends back together and tape them solid and they work perfect noW!

4G63 4EVR

iTrader: (2)

Well I have checked the bulbs/voltage and the bulbs look fine and no voltage. I have checked the 7.5A fuses and they were fine and should be fine considering my rear tail light works. One thing I just also noticed was that the side marker lights weren't working either.

I have a feeling that there is a problem somewhere around the connector F-12 in the wiring. F-12 is connected but I still need to check the voltage there. If I have voltage, I probably have an issue with the bumper harness.

evokid511

iTrader: (24)

your side markers and licenses plate light are both on the same harness that i was saying comes unplugged sometimes in a crash so if you checked that then im not sure what else could be the problem
and i cant open the image to see which wire you are talking about if you could post it again it would be great

evil-evo

bulb, power, fuse ,then any grounds

4G63 4EVR

iTrader: (2)

I probably need to check the grounding... Checked bulbs, probed for power, checked the fusing (I'd have more problems than I do if it was this) but I have not probed for ground continuity.

evokid511

iTrader: (24)

have you gotten an electrial tester to test to see if you have power going to the ends of the wires... and have you checked the connection behinth the bumper?

cmspaz

iTrader: (1)

Well, considering the OP either found his problem and didn't post the solution or just said eff it and ran without them, I'm going to bump/commandeer this thread, since I'm in this boat. As it actually turns out, I've been in this boat since I bought the car, but didn't know until this past winter until a friend pointed it out.

At this juncture, I know these things:

1) These lights are part of the circuit for the driver's tail light. That works fine, and as such the fuse is good (I did physically check despite it not being necessary).

2) The wiring harness in the bumper is not broken, a continuity test reveals a complete circuit.

3) The chassis side of the harness reads 0v across.

4) My trunk light assembly is a continuous circuit through the bulb, yet that is not functional either, nor does it receive voltage at the harness.

Things I intend to check at this juncture:

1) Verify that voltage exists at the start of the lighting harness under the dash.

2) Check the quality of the ground for the lights. From what I can tell it's inside the trunk.

05blue8

iTrader: (28)

Did you ever figure this out? I just went for inspection and my rear bumper lights don't work, my passenger rear running light works, driver's side does not. My driver side brake and running lights were burned out as were the bumper lights yet the passenger were fine. I can't find the problem. Thanks!