Hi. Great forum, I'm a lurker and have had a few problems with my PT I've always found a solution on this site, thanks.
I've tried to find some information on this error code (P1685) but really can't find all that much, or maybe I didn't look hard enough. I do know it's an invalid key entry but can't really find how to remedy the problem. I have a 2001 PT and have been getting the code the last few days now, little ding about a mile or so into my trip. Car is running great otherwise...
Thank you in advance and if more info is needed please ask.
