Tail/brake/reverse lights not working after replacing burned out bulbs

NICA PARENTEAU

MEMBER
2004 DODGE RAM
5.7L
V8
4WD
AUTOMATIC
278,000 MILES

Truck listed above is a 1500 Laramie. Someone previous messed the harness. Well they all worked until I change burned out bulbs and now I don't know. There is a spliced wire into one that went directly into bulb socket and there are repeat colour wires on each side so I'm at a loss when looking at wiring diagram.

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Monday, June 14th, 2021 AT 8:54 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Hi,

I suspect someone wired in trailer lights or something similar. As far as the wiring, I attached the wiring schematics below for the exterior lights. I had to cut the pic in half to make it readable, but I did overlap them so you can follow from one to the next. If you look in pic 2, I circled the rear lighting section.

Here is a link you may find helpful when working on this:

https://www.2carpros.com/articles/how-to-check-wiring

I hope this helps. Let me know if you have other questions or need anything.

Take care,

Joe

See pics below.

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