Im gonna say that you dont have istap, and dont have a cable- otherwise you'd already have been looking at codes, and into the FRM and JBE.


and even then, there is no singular code that says 'Bad JBE" or 'bad FRM'.


your best bet - and I think this is likely what bought you to xoutost' is to google and read- pattern match with symptoms. There was a recall (JBE or FRM?) but that was 10 years or 120k miles. was yours done? (Dealer can pull this up, for free.) FRM is pretty cheap, might be cheaper/faster just to replace instead of paying someone to remove, test, reinstall. There is also the hassle of the car being down for a few days if you send it out...