Fault Codes

Below is a list of systems commonly found in A2s (including swapped engines), with instructions on how to diagnose and code readout tables for each system.

KE-Jetronic


1985-1989 Jetta GLI and GTI, including 16v

Motronic


1990-1992 GTI, Jetta, Passat

Digifant I


1990-1992 Golf and Jetta, California

Digifant II


1987-1992 Golf and Jetta

Digifant I (G60)


Common swap engine, used in the 1990-1992 Corrado and Passat

VR6


Common swap engine, used in 1992-1995 Corrado and Passat.

ABS


Optional on 1989-1992 Jetta Carat and GLI 16v, 1990-1994 Corrado and Passat.

All Codes


All codes available for OBD1 VW code units.