first place to look is the fuse next you might have a wiring issue in the tali end of the truck if you have trailer wiring tied into the stock wiring look there for broken wires or remove the "T" (if so equipped) and reconnect the stock harness
If the night running lights have failed the bulbs should be checked. Find the bulb housings and remove the parts. After the bulbs are replaced check the lights.
Working brake lights are important for safety reasons while driving. It is important to check all of the wiring, if the brake lights are not working and the fuses and bulbs have been checked.
Because your brake system is not working properly. You need to have your brake system checked out and repaired before you have to make an emergency stop and then they fail to brake as they should. ALWAYS DRIVE SAFELY
Had short in trailer light, blew fuse, checked traile, thought fixex, did not, blew turn signal fuse along with emergency flasher fuse, checked again, found problem, but no lights, replaced fuses, nothing works, have checked everything I know, even pulled stering wheel checked swith, nothing wrong, has me at wits end, plesse advise
have you checked the bulbs and fuses
check the ground on your tailights R.W: Have you checked the turn signal switch? That may have to be replaced.
Turn signal relay needs to be replaced. If you turn on the hazard (emergency) switch, all the signal lights should come on. This says the lights are okay.
Check bulbsTailights are usually common to the parking and dash light circuit
More than likely the ballast in the fixture has failed.
When the signal lights are not working on a car, there are a couple of things that could be going on. One could be that the bulb needs to be replaced. The other possibility is that the signal relay needs to be replaced.
The light switch.
my Oldsmobile alero did the same thing. It turned out to be as simple as a blown bulb in my tail light.