I am new on here and I have been reading alot of post on this issue,is the 1994 lexus es 300 obd 1 or 2,I check under my dash and where the scanner would go,it is more like a circle.I have a obd 2 scanner that I use on my 2004 acura tl and it wont fit in my 1994 es 300.Can some 1 help on this issue.Thanks