Need advice on headlight/foglight wiring

[Insidious Surmiser]

I re-wired my lights like off-road guys do to aftermarket relays. I wired the old power wires to 1 relay for low, and another for high. Then grounded through the relay to the chassis. I did not use the old grounds. Now I have no power at the fuse box (under hood) for either headlight, and subsequently, no power at the relays (for switch). For some other un-known reason my foglights no longer turn on either. I at least triple checked my work. :1zhelp:

 

[Insidious Surmiser]

I was looking at the wiring and it looks like the circuit is wired backwards???? (from factory) still need to figure out why I have no power in the circuit.

 

[hvyman]

It's a ground controlled circuit like everything else.

You would use the switch to ground the relay coil and the relay switch to ground the head light.

Might want to start by checking your fuses as well.

 

[Insidious Surmiser]

well. fuses are all good. I didn't use my power wires to the lights for anything. I thought I had my voltmeter leads backwards. thought it was a ground -_- re-wiring now. hopefully it'll be fine

 

[Insidious Surmiser]

bahahah so it works, but now my foglight switch turns on my highbeams, ,':-| high beam switch works too.

 

[3p141592654]

A good writeup on what you are trying to do can be found here:

http://www.clickdesign.co.uk/supradupra/html/hid_dip___full_mod.html

 

[Insidious Surmiser]

oh, thanks. I was looking at a canadian diagram... apparently ours are different. I'm being told that all I need to do is load the (curently) un-used passenger headlight circuit.