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Old October 20th, 2018, 22:46   #1
Join Date: Nov 2015
Location: iowa, usa
TDI(s): 2003 jetta
Fuel Economy: low 40's
Default what type OBD2 datastream Jetta TDI MK4???`

I have an 03 Jetta TDI and am trying to ascertain the OBD2 data type: CAN; K-Line or; SAE.
Any help much appreciated.
Thanks! DX
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Old October 20th, 2018, 23:44   #2
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Join Date: Jan 2009
Location: Las Vegas, Nevada

A 2003 will be K-line (aka ISO 9141). CAN bus did not start until the MK5 cars (2005.5+).

Have Fun!

2009 Jetta SportWagen TDI (gone but not forgotten)
2018 VW Tiguan SE (I wish it was a TDI)

Last edited by JSWTDI09; October 20th, 2018 at 23:48.
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