can stock highlight wires/circuit support fog lights?

[akhoundog]

i just bough some hella ff75 lights and was wondering if the factory wiring harness and stuff can handle the amperage? I tried searching but the force is weak with me.

[Mister_Perkins]

Originally Posted by akhoundog

i just bough some hella ff75 lights and was wondering if the factory wiring harness and stuff can handle the amperage? I tried searching but the force is weak with me.

[uibalnme]

Originally Posted by akhoundog

i just bough some hella ff75 lights and was wondering if the factory wiring harness and stuff can handle the amperage? I tried searching but the force is weak with me.

Easy answer...No. You'll have to use a 12V 30 amp relay to run the fog lights. You can tap into the stock headlight or corner light wiring to use it as a trigger to activate the relay, and thus, activate the fog lights.

[LynchburgCSI]

^ Agreed.

[Yuko]

uibalnme drew a very good wiring diagram and is very similar to mine. The different is that I tapped into the heated seat 20A at the fuse box to trigger the relay instead of the low beams. So when my ignition key is on, the fogs are on too; like DRLs. But I can still disable it with the switch. The advantage to this is the fogs will stay on when high beam is enable.

What ever you choose, do the relay set up. I seen others run a straight wire from the battery to a switch on the dash back to two oversized fog lamps with no fuse. Can you say fire?

[uibalnme]

Originally Posted by Yuko

uibalnme drew a very good wiring diagram and is very similar to mine. The different is that I tapped into the heated seat 20A at the fuse box to trigger the relay instead of the low beams. So went my ignition key is on, the fogs are on also; like DRLs. But I can still disable it with the switch. The advantage to this is the fogs will stay on when high beam is enable.

What ever you choose, do the relay set up. I seen others run a straight wire from the battery a switch on the dash back to two oversized fog lamps with no fuse. Can you say fire?

Credit where credit is due. That's not my diagram. I found it on google. Anyway, I wired my fogs into the corner lights(no switch). The only thing about that is the fogs flash along with the corner lights when I turn the alarm on or off. That may not be a bad thing though.

[Sturdavj]

The trick is to wire them so that when you key out, the lights go out.

In my 1986 Corolla DLX; I used a 12vdc power source for the relay, however I was not able to find an easily accessible 12vdc power source for my dash switch. The source I used is powered up all the time… hence should I forget to switch them off the battery goes dead and out comes the jumpers, a royal PIA

[akhoundog]

ah ok, THANKS!

the hella kit i bought comes with a relay so i should be able to use the headlight wires to activate the relay.

this helps a bunch, thank you. I've never installed light before but am semi-familiar with dc wire from r/c stuff.

[uibalnme]

It's really easy to wire everything up. Just make sure you use weather proof connectors, and use split tubing to protect the wires. The hardest, and most time consuming part is routing the wires so everything looks neat and clean.

[Sturdavj]

As a point of interest;

My fog lights are yellow/amber, there can be times when there is a great deal of fog in my drive area. (Oregon Cascades)

I turn off my head lights off, and drive using just the fog lights, they are 55 watt so it is legal. This helps to eliminate the white back glare, that can occur with dense fog.