Has anyone re-wired the fog light switch so it will run independent of the headlamps?

Thanks

 

while i really have no idea of how the circuit is, (send me a schematic and i'll figure it out ) it may be possible to insert an aftermarket switch on the wire that triggers the fogs from the parking/head lights...that way, when the aftermarket switch is on, it fools the fog circuit to think the parking/head lights are also on.

 

Sorry this post is long, but I wanted to be able to share with all...

My car is a 2002 Protege 5.

After looking at the fog light switch and relay in combination with the headlight stalk with a voltmeter, I was able to rewire the fog lights to work with the parking lights and low beams, and remain non-operational with the high beams. To do so:

The relay for the fog lights is located under the instrument panel, mounted towards the far driver side of the vehicle. It can easily be found by setting your fog light switch to the on position and cycling your headlight stalk on and off. You will be able to both hear and feel the relay cycling.

As with any electrical project, first disconnect the negative terminal of your vehicle battery.

Remove the side panel from the driver side of the instrument panel. Unplug the harness from the fog light switch so that it is accessible. The wires on this harness are red/white, blue/yellow, green/black, and white/blue. The last two are for the light bulb in this switch.

Carefully slide the relay assembly down from the metal bracket it is snapped to. The wires on the relay are red, blue/yellow, blue, and blue/red. The first two being labeled Coils, and the last two On and Common. From "pinning out" these wires, it is seen that the red wire is acting as the signal to the relay from the headlights. This signal needs to be removed (tape this to avoid possible shorting) and replaced with a signal from the parking lights. If only jumped, your headlights will turn on with you headlight stalk set to parking lights, since it is wired in path with the headlights. This signal can be taken from the green/black wire of the fog light switch with a jumper wire to the relay, since it is the light bulb in (turning hot when the interior lights come on, i.e. parking lights on).

I wired mine as to eliminate any cutting of the factory wiring. To do this, after unclipping the white portion of the relay assembly (this is not very easy), I removed the red wire including the female spade from the white portion. I jumped to the green/black wire from the fog light switch with a squeeze connector (18-22 gauge, and this was too small so both wires were run in one channel). The other end of the jumper wire was then crimped with an 18-22 gauge female spade and inserted back into the now available terminal on the white portion of the relay assembly. After completing this, the relay assembly can be re-assembled and re-mounted to the bracket and the fog light harness can be plugged back into the fog light switch. Upon reconnecting the negative terminal on the battery, your fog lights will now be able to be switched on or off with the parking lights and/or low beams on.

*Obviously, please use caution when rewiring your own vehicle, I did this without a vehicle schematic.*

 

Maybe you could help me out with this. My fogs are wired to an Yellow wire that goes inside the ignition switch. I dont know what that wire for, but the fogs only light went the switch is at On position. Got an idea what that yellow on for?

 

you'll need to test that wire with a multimeter. If you see a change when the headlight switch is on, then it may just be the wire your looking for. What ever polarity it shows when on, jump that same polarity to the suspect wire (yellow) make sure to fuse your jumper wire with a 5amp fuse. If your fogs light up, your good to go.

MAKE SURE TO TEST YOUR WIRES THOUROGHLY, USE THIS INFO AT YOUR OWN RISK, I DO NOT TAKE ANY RESPONSABILITY FOR ANY PROBLEMS

Try to find a factory manual with the wiring schematics, before altering anything.