2004 Tacoma tail lights out

Tail Lights Out
- running lights, etc work
- new bulbs
- fuse ok
- relay ok
- brake light works fine as does turn- can't be a common ground?

Suggestions? Thx

 

Tail lights and running lights are usually considered the same thing. Which light is not working? Just the rear tail lights but side front marker lights are working? Does your truck have a trailer light hookup?

 

Yes rear ones are out , front sides are good . I had a trailer harness and clipped all the wires and removed to check that

 

Did you remove the converter box inline with the rear light harness?

 

No I have not - is it hidden above the frame?

 

2003 diagram but its the same.

 

mine is tucked under the left corner of the bed. right under tail light area

 

Fallow your tail light harness.

 

Heading to the shop - all the simple fixes don't seem to solve it
Thx for input

 

I had the same issue. For me it was the the plugs that connected the whole assembly. They were full of corrosion and the connectors themselves were all eaten up with rust. I just ended up cleaning the connectors from the truck and replacing the OEM light housings because of how much there was.