I bought a 97 prelude sh with just 119,000 miles on it but i realized that every time i turn on the car my engine and Atts light is on. My husband is a tuner head so far he knows something about this kind of vehicles is my first time ever buying this type vehicles so far I'm loving it.My husband has said that the ATTS light is on is due to an sensor but my engine light is on also Does anybody can help me on that? Any opinions nor advice can someone please tell me.. Thanks in advance

Run the CEL and see what codes it has up. Under certain circumstances with the CEL on, the ATTS is on as well, and is not working. Not because the ATTS is bad, just a computer thing.

Actually ATTS light will always come on when a CEL is on. When there is a CEL, ATTS (Active Torque Transfer System) automatically turns itself off so that no harm is done to it. I don't know why this is, it may be because backfires or missfires are somehow bad for it or whatever but ATTS is very fickle. Fix the CEL and you will the ATTS light will go off as well.

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