New wiring dosnt do anything when key is on.

[randomTruckKid]

Finally got to the point where I can try to test my new wiring. I wired pu the frame with the body off. Then yesterday I put on my new cab, from a 1984 c10.
Been wiring it all day today but I try to turn it on and nofthing happens.

Currently the only thing on is the cab. So no exterior lights. Really what I'm looking for to happen is the gauges to light up. Nada.

I can't put on my front rad mount till Tuesday bc I am waiting on body mounts.

Now I have to ask. Do I need to have generally everything together for it to work? I've alrety gone checking the 2 ground wires in the back of the cab, had to attach both.

 

[Dmack]

If it's an aftermarket harness, I would guess that if you have the main power input hooked up to the new fusebox, a good ground, and a complete circuit with fuse, that circuit should work. If it's a factory harness, check the fusible links as they feed most of the circuits.

 

[Dmack]

Just remembering, I think the headlight circuit doesn't work like a traditional circuit. Something like it's the ground side that is switched , so if you were trying to use a different harness, it's tough to integrate the two. Could be way off, so hopefully those more knowledgeable will chime in.

 

[randomTruckKid]

If it's an aftermarket harness, I would guess that if you have the main power input hooked up to the new fusebox, a good ground, and a complete circuit with fuse, that circuit should work. If it's a factory harness, check the fusible links as they feed most of the circuits.

Guess I never said when I made the original post. It is all new harness. 27 circuit painless performance one.

 

[ali_c20]

I vote for ground. Have you temporary grounded your exterior lights to the chassis/ body ? Ground connection from chassis/body to battery ? On the 3rd picture of the original post there is no ground connected to the battery.

 

[SquareRoot]

A test light will do wonders.