SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | Motronic injection and ignition system (1.4 l engine, 2 valves) | Self diagnosis, V.A.G Inspection Service | Self-diagnosis - general considerations | Self-diagnosis technical data | Selectable functions when using fault reader V.A.G?1551/1552 or VAS?5051

Selectable functions when using fault reader V.A.G 1551/1552 or VAS 5051

Selectable functions when using fault reader -V.A.G 1551/1552- or -VAS 5051-

The following table contains a summary of the conditions under which desired functions may be selected:

Function		Premise
Functions of fault reader -V.A.G 1551-, -V.A.G 1552- or -VAS 5051-		Engine off,ignition on	Engine idling	Vehicle moving
01	Consult control unit version	yes	yes	yes
02	Consult fault memory	yes → Note	yes	yes
03	Final control diagnosis	yes	no	no
04	Basic settings → Note	yes	yes	yes
05	Clear the fault memory	yes	yes	yes
06	End transmission	yes	yes	yes
07	Encode control unit	no	no	no
08	Read measurement value block	yes	yes	yes
10	Adaptation	no	no	no
15	Read conformity code	yes	yes	yes

¹⁾	Do so if the engine does not start. The ignition must be on. (First, operate the starter motor for at least 6 seconds.)

²⁾	Must be carried out after replacing the engine control unit, the throttle valve drive unit or engine, or disconnecting the battery.

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