Question about 2000 Volkswagen Jetta TDI
I recently took my 2000 Jetta into two different smog shops and failed both due to "no data from pcm - OB II failed test" and "vehicle failed the MIL/Check Engine Light Test due to OBD Communication Failure". My check engine light isn't and hasn't been on and the bulb isn't burnt out. The mechanic says the computer is reading my stereo as an after market, but it's a stock stereo. They both recommend I take to the dealership, which I know is going to cost a lot just to run a diagnostic. Last time I had it smogged, it passed fine and I haven't changed any equipment since. Anyone have suggestions on how I can pass my smog and what the issue may be? Thanks!
The no data error can be contributed to a bad interface cable or the scaqn tool was configured wrong and therfore could not connect to the ecm. I would recommend having a scan done again by a certiefied volkswagon tech chances are the mechanics used the wrong adapter cable or reader card. your smog problem could be that your evap canister is clogged therfore gives a bad reading.unfortunately you have to have a scan done but try an independant small shop that delas exclusively with foreign cars such as porche andd mercedez. the will have the correct scan tool and will be much cheaper than a dealership. your cost should be no more than 50 dollars US ... please rate this. thanks
Posted on Sep 23, 2008
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 01, 2017 | Cars & Trucks
Apr 07, 2013 | 1995 Toyota Tercel
Oct 09, 2012 | 2002 Volkswagen Jetta TDI
May 23, 2012 | 2006 Hyundai Elantra
May 04, 2012 | 2000 Daewoo Lanos
Dec 28, 2009 | 2000 Volkswagen Jetta TDI
Apr 08, 2009 | 2000 Hyundai Elantra
4,389 people viewed this question
Usually answered in minutes!