I recently installed a HID relay kit for my 03 4 cylinder ranger. The right headlamp wasn’t working before but I had assumed the bulb was burnt out and would work after I replaced it. After installing the kit, the right side headlamp still isn’t working. I thought I checked all applied fuses and they all look fine. Does anyone know if possibly something else could be effecting the circuit that the right headlamp runs on or something? I don’t have any other electrical issues and I tried using a replacement HID with no prevail.

 

Welcome to the forum

Do High beams work on both the left and right, they use different wires and fuses?

If High Beams also do not work on the right side but do on the left then Ground wire in the right side may be bad
Each side uses a different ground point/wire

In 2003 fuses 38 and 42 in the Engine Fuse box each power 1 low beam head light, 38 is the left and 42 is the right, both 10amp fuses, but just low beams

Fuse 33 in Cab fuse box is for high beams on both sides