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Dash panel insert self-diagnosis up to Model Year 1999 > < Safety precautions

A3 Mk1

Electrical system Self-diagnosis
Self-diagnosis
Connecting up vehicle diagnostic, testing and information system VAS 5051 and selecting functions
 
N24-0588

Test requirements:

  • ● Vehicle supply voltage OK
  • ● → Fuses of corresponding system OK

=> Current Flow Diagrams, Electrical Fault-finding and Fitting Locations binder

  • ● Earth connections to engine and gearbox OK
 
A01-0058

Sequence of operations

  • ‒ Switch off ignition.

Vehicles up to Model Year 1999:

  • ‒ → Use diagnostic wire VAS 5051/1 to connect up vehicle diagnostic, testing and information system VAS 5051.
Attention:
Heed safety precautions .
 
A01-0062

Vehicles as of Model Year 2000:

  • ‒ → Use diagnostic wire VAS 5051/1 to connect up vehicle diagnostic, testing and information system VAS 5051.
 
A87-0312

All models:

Note:

If fault message appears on display:

=> Operating instructions for vehicle diagnostic, testing and information system VAS 5051

→ Display on VAS 5051:

  • ‒ Touch "Vehicle self-diagnosis" key.
 
A01-0120

→ Display on VAS 5051:

Note:

Touching "00 - Interrogating fault memory - entire system" in list -1- implements the automatic test sequence, i.e. fault memory interrogation takes place for all vehicle systems with self-diagnosis capability.

Dash panel insert self-diagnosis up to Model Year 1999 > < Safety precautions