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
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Posted on Jan 02, 2017
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