Hello trucker brothers! Need Help Passenger side tail lights not working but all other functions works (turn, stop, flashing lights) only parking lights not working try connect wire from driver side everything works good Please!!! Let me know if was same problem Thank you!
Check the pigtail to the light. 1 of the 3 wires is probably broken. Starting at the light,the plug itself.trace wires back till you find a break. A test light will be handy, if you can’t see the break. You can unplug the working light, use test light on each prong of the plug. Compare results to the non working plug. It’s usually a bad red or white wire, If I recall. Blacks usually ground.I may be wrong, test light will tell.
Had the same problem both sides eventually replace all the wiring to the plug mounted on driver side rail. Broken and corroded wires
