left tail light stoped working

we were changing the head light to hid's when we hooked every thing up the left tail lite and left park lites dont work any more the turn signals and brake work fine cant find the problem any help thank you

Fuse - parking LPS
Light sockets - are your blinker lights (inside the Jeep, on all the time?)
Fuse - running LPS
Bad trailer wiring.
Grounds.

Check 'em

I've checked all the fuses. All hazards and blinkers work

If there was a ground issue the filiment for the blinker would not work. (right?)

I do have a four wire trailer wiring harness but I have never used it.

so just to recap its just the left amber side maker, the left bumper park light, and also the left rear tail light that don't work. The headlight brake light and turn signals all work

dday8881 said:

I do have a four wire trailer wiring harness but I have never used it.

Click to expand...

Open it up and look at the light sockets. Mine were caked with old grease and corroded...replaced with new sockets all around from Crown.

Who installed the trailer wiring, I also had trouble with my rear lights and I removed the trailer wires and refreshed the harness. Everything works now.