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Today I bought some auxiliary lights for my truck. I had a old wiring setup and decided I would use it. It has a relay and a fuse it worked fine on the lights before but now when I put power to it the lights come on but the switch doesn’t turn them off.
I grounded the relay and the lamps on the same screw that grounds my headlights.
The relay has 2 white wires coming out of it if I hook them both to power the lamps come on but only if I hook both white wires up.
The switch has a white wire and a red wire neither are hooked to the lamps in anyway and I’m sur they are supposed to be but where?
I tried different ways of connecting the switch into the relay wires but none worked
Where does the red and white wire on the switch need to be connected to switch it on or off?
Does it matter that I used the same ground for both lamps and relay?
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Check over your wiring. It should be similar to the diagram below.
The indicator light isnt nesasarry, but a useful feature non the less.
Also, an alternative to the toggle switch, wire in the relay to you fuse panel. be sure to run it on the fused end of the circuit. Specifically the the headlight circuit,
It’s pretty close to that I have both hooked up to the same power source but that shouldn’t matter should it?
On my fuse box I have two auxiliary posts that are hooked up by a 30 amp fuse one per post and I have them hooked up to the same post
It’s my switch I’m pretty sure. It’s a micro bug switch with a white wire,red wire, and black wire, the black wire just makes the indicated lights work, the red wire hooks up to power and the white wire goes to the relay. The red wire has power all the way into the switch but when I flip the switch the power doesn’t transfer into the white wire but if I hook the white wire directly to power the relay flips and the lights come on so I know it’s working.
Is there a switch I can buy by itself that is like the one I have it’s a pilot wiring harness setup pl-harn3 is the name of the setup.
Ok I’m hoping not to have to drill holes. The one I have just stuck with double sided tape and then I just ran the wires down alon the steering colum and under the dash
The lights and the switch need a separate power source. This is the entire principal behind the relay. You’re trying to protect the low amp circuit of the switch by separating it from the high amp light circuit.
Hey thanks those were a lot of help I actually figured out that it was the switch not transferring power to flip the relay I changed the switch and it fixed the problem! Thanks for the help.
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