Volkswagen Workshop Service and Repair Manuals

Special tools, testers and auxiliary items

• ◆ Fault reader V.A.G 1551 or vehicle system tester V.A.G 1552 with cable V.A.G 1551/3

Work sequence

• ‒ 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:

• ‒ Operate starter for approx. 6 seconds and then do not switch off the ignition.

• ‒ Switch on printer with the Print button
  (Warning lamp in button lights up).

• ‒ Press keys 0 and 2 for function "Interrogate fault memory" and confirm entry with Q key.

Note:

If something different is indicated on the display:

=> Fault reader operating instructions

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:

If no fault is stored:

• ‒ Press ⇒ key.

• ‒ Press keys 0 and 6 for the "End data transfer" function and confirm input with the Q key.
• ‒ Locate and eliminate faults printed out as per fault table => Page 01-13 .
• ‒ Erasing fault memory => Page 01-29

Note:

If a fault is present which is not recognised by the self diagnosis, carry out further fault finding using the fault table in "Engine fault finding" binder.