Can anyone help me i put a wiring harness in and none of my lights are working tail and headlights . The wiring harness is from a 89 and i put it in wipers got power but no lights

 

Check the tail light relay its up on top of the fuse box inside the cab.It's the round relay.This is only for tail front corner and your guage lights though.You should also want to check the ground for your headlights.

 

Which part of the wiring harness did you swap out the whole thing?And it came from an 89 into a 95?You need to check it with a multimeter.Try figure out where the 12 volt stops.

 

Earth... dose the loom have a battery earth as well as the main earth to the chassis/frame.
The head and tail lights might be earthed through the loom and the wiper through the body or vice versa, as in my old stouts most things are earthed through the loom and some via solid fixture to the body

 

I swapped out the harnes from inside to the fron of the cab .. I recenly checked the fuse box under hood and there is no power going to the headlight fuses

 

Sounds to me like a bad ground.earth what????

 

jump

Try jumping the headlight fuse with another fuse you know has power.if that still dont work gurante bad ground.

 

How do you jump fuses. Still learning i dnt want to try and do it and i do it wrong

 

Take a wire pull the fuse with power and wrap one side of the plug and plug it back in smtimes the wire coating gets in the way so peel the wire back a way so its not in the way next pull the headlight fuse and take the other end of the powered fuse wire and wrap one side of the headlight plug and plug it back in.Disconnect your battery while you do this and find a poweted fuse with the same amperage but with a constant power like radio or smthing. 15 amps i believe.you can call me if you have more questions 929 4554 my name is joe im from Merizo.anytime shoot.

 

Alright imma try that thanks man