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Fault table > < Connecting fault reader V.A.G 1551 and selecting engine electronics control unit

A3 Mk1

Motronic Injection and Ignition System (4-cyl.)
Self diagnosis
Interrogating and erasing fault memory
  • ‒ Connect fault reader V.A.G 1551 (V.A.G 1552) and select engine electronics control unit with the "Address word" 01. When doing this the engine must be running at idling speed.
    (Connecting fault reader and selecting engine electronics control unit .)

Only when engine does not start:

  • ‒ Interrogate fault memory with ignition switched on.
 
→ Indicated on display:
Rapid data transfer    HELP
Select function XX
  • ‒ Press keys 0 and 2 for function "Interrogate fault memory" and confirm entry with Q key.
 
→ The display will show either the number of faults stored or the message "No fault recognised!".
X Faults recognised!

If no fault is stored:

  • ‒ Press ⇒key.

If one or more faults are stored:

The faults stored will be displayed and printed out one after the other.
Then the display will show:

  • ‒ Locate and eliminate faults printed out as per fault table => Page 01-9.
  • ‒ Press keys 0 and 5 for the function "Erase fault memory" and confirm entry with Q key.
 
→ Indicated on display:
Rapid data transmission    ⇒
Fault memory is erased!

Note:

If the ignition is switched off between interrogating fault memory and erasing fault memory, the fault memory will not be erased.

  • ‒ Press ⇒key.
 
→ Indicated on display:
Rapid data transfer    HELP
Select function XX
  • ‒ Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.

Fault table > < Connecting fault reader V.A.G 1551 and selecting engine electronics control unit