ofcmarc

My fog lights quit some time ago and it appears the TIPM is causing the issue. I tried having it reset at the dealer but no luck. No biggie, I can just run them outside of the TIPM control with a relay but.... If I still wanted to use the factory switch to trigger the relay, would that work?


I think I can tap the WtT/LG wire in Pin #1 at the headlight switch and run that through a relay to ground and it should work but I'm not 100% sure as the TIPM has way too much control over things...... I miss my 1st gen...

Any thoughts on my plan?

ofcmarc

Not even a guess eh?......

TqMnster

I was pondering the same thing but I never had factory fog lights but I wanted it to look factory. I'm thinking it wouldn't work though because if I had to guess it seems the headlight switch might just send a single signal to turn on and turn off fog lights with each push of the button rather than simply turning on and turning off the signal. I could be completely wrong however.

In other words I'm thinking it's a momentary signal and not an actual " On/off switch"

ofcmarc

When it comes time to actually fix this issue, I'll just bypass the whole works including the headlight switch and TIPM. Complete stand alone harness for lights.

TqMnster

That's my plan as well

nkennedy

I was wanting to hook up my fog light like this too, but couldn't figure out what wire to use. It seems like there should be a wire you could cut into at the TIPM to power a relay for them.