Self-diagnosis
Interrogating and erasing fault memory
Note:
The vehicle system tester V.A.G 1552 can be used instead of the fault reader V.A.G 1551, however a print-out is not possible.
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‒ Connect fault reader V.A.G 1551 (or 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:
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‒ Interrogate fault memory with ignition switched on.
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‒ Switch on printer with the Print button
(Warning lamp in button lights up).
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