when should the ATTS light turn on?

should the ATTS light come on when theres a problem or when its being used?

When there is a problem, try resetting the ecu and see if it comes on again

well when i was having the stalling problem with the loose ignition and faulty coil, and once when i accidentally dropped it from 3rd to 2nd while accelerating (doh:eek2: ) the light came on. But as soon as the car was turned off, and then restarted the light was off and hasnt come back on.

I know that some check engine lights dont stay on all the time if there is a problem. Is the ATTS light like that? Or if the light is off does that mean im smoove sailing for some hard cornering?:D

different things, like excess wheel spin, will shut the ATTS system. It has to be under certain circumstances, that is why they say SH isn't good for much more than 250 whp, otherwise you will be shutting off ATTS everytime you floor it in a low gear. If the light shut off, I'm sure you are fine now, mine has come on randomly, and shutting off the car and turning it back on again turns off the light. Now if the light stays on after you turn the car off and on again, you've got some problems.

thats what i figured. Thanks! :D