VAG-COM OBD Scanners references/FAQ

[mdubon3]

I just got my 2003 Jetta TDI 1.9L Automatic and for some reason I got a check engine light while going up hill. it seems like it had issues shifting and it lost power as if it was stuck on first and it couldn't go faster than 25 MPH. with high RPM. It seems to be running ok now but it wont shift into Fift (overdrive) on the freeway with Check Engine Light. it only shifts into fourth at around 55 mph. where it used to go into over drive by then. The following day the chk engine light turned off and it was shifting normal again, but now It's acting up again. I need a recommendation on a OBD scanner that can read VW codes. PLEASE HELP.

[TDICADDGUY]

Originally Posted by mdubon3

I just got my 2003 Jetta TDI 1.9L Automatic and for some reason I got a check engine light while going up hill. it seems like it had issues shifting and it lost power as if it was stuck on first and it couldn't go faster than 25 MPH. with high RPM. It seems to be running ok now but it wont shift into Fift (overdrive) on the freeway with Check Engine Light. it only shifts into fourth at around 55 mph. where it used to go into over drive by then. The following day the chk engine light turned off and it was shifting normal again, but now It's acting up again. I need a recommendation on a OBD scanner that can read VW codes. PLEASE HELP.

Sounds like limp mode to me, possibly a bad sensor or connection. VCDS is really your only choice to be sure. Other OBD scanners often don't communicate properly with the TCM or the generic OBD codes don't accurately depict the fault.

FYI, this is only a 4 speed transmission. The "fifth gear" you are feeling is just the torque converter locking up. Good luck with it, these transmissions aren't the best. I swapped mine out for a 5 speed, best thing I've ever done to the car.

[mdubon3]

Hi everyone!! I need some help.. I have a 2003 Jetta TDI, GLS. and I keep getting a random Check Engine Light. So Purchased a VAG scanner. It's the V-Checker V102 Reader. Now I need to find where I need to plug it to. Does anyone know where the plug is by any chance??? thanks for the help.

[mdubon3]

Originally Posted by TDICADDGUY

Sounds like limp mode to me, possibly a bad sensor or connection. VCDS is really your only choice to be sure. Other OBD scanners often don't communicate properly with the TCM or the generic OBD codes don't accurately depict the fault.

FYI, this is only a 4 speed transmission. The "fifth gear" you are feeling is just the torque converter locking up. Good luck with it, these transmissions aren't the best. I swapped mine out for a 5 speed, best thing I've ever done to the car.

THANK YOU FOR THE ADVISE.
I purchased scanner and I'm trying to plug it to the Jetta but I can't find the plug. Supposedly the scanner that I bouth has all the codes specifically for the VolksWagen. We'll see. Do you know where the plug is in a Jetta TDI 2003 by any chance?

[Vince Waldon]

By the driver's left leg, up from and to the left of the clutch pedal.

[dubidoobs]

Originally Posted by VWV

Question.
For my 04 Jetta wagon I've seen lots of talk about Vag Com but what about this one.
http://www.obdcom.com/index.htm
I keep getting engine light on, especially in the winter and I'm tired of having to take it to the dealer to clear it.
Has anyone tried obdcom and compared it to Vag Com for the more simple requirements.
Thanks

IMHO, put the $87.95 towards a VCDS, if you have a VAG car.
I can associate this with the "one size does not fit all" cliche...in my experience, the term "universal" isn't always, when it comes to VAG cars...but if you just need something to read a code, or clear maintenance/MIL lights, then why not...

VCDS is for the big boys!

[miguelandrade100]

When I park my 2000 volkswagen Golf TDI in a place of lotes of sun after 20 a 30 minutes the alarme came on.can you help me to discouver the problem.Thank you

[BobnOH]

m- try posting over in the MKIV forum