+++^^^

This is the best way to have it off. I have it and I swear by it.

 

I always preferred the default "off" method with the relay, so in the event I got caught in the rain or something, I could turn the TCS on which helped with having a blower and a hot tune (I wouldn't boost it while TCS was on of course).

 

Good point which I forgot about. Perhaps one of the FI guys could elaborate on the dangers of having TCS on under boost.

 

Having TCS on under boost COULD result in the fuel system running extremely lean causing detonation which results in major engine damage, the same kind of damage that happens when running Nos and you dont have enough fuel.

 

Hey, I have a 2008 mustang, and it thought I had the trac control, but I dont have a button? Is it on the dash, and also I seem to have the icon on my dash, as I can see its outline during a sunny day (the car with squiggly lines). Can anyone tell me whats up? If so, thanks!

 

I've been wondering how you could take the actual BUTTON of and put it back on.
I was just going to paint mine RED so that I would see it and remember to
turn it off when starting the car.

I hate messing with wiring.