SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4 cylinder Fuel-injection engine (1.4l, 4 valves) | Mixture preparation system, electronic inj.,Gas

Engine control unit fault memory: consulting and erasing

Special tools and workshop equipment required

t	Vehicle diagnostic, testing and information system -VAS 505X-, see equivalent → Anchor

Operation process

–	Connecting the central diagnosis -VAS 505X-

–	Start engine and run at idling speed.

Only when engine does not start:

–	switch ignition on.

–	Briefly press the key “Vehicle self diagnosis”.

Indicated on the vehicle diagnostic, testing and information system -VAS 505X-:

–	Select vehicle system “01 - Engine electronics” in menu -1-.

–	Wait until the following is displayed.

Indicated on the vehicle diagnostic, testing and information system -VAS 505X-:

–	Select function “02 - Interrogate fault memory”.

–	If no fault is stored in engine control unit “0 fault(s) detected” is displayed.

–	If faults are stored in the engine control unit, they will be displayed as a list.

–	Press the ← key

–	Select function “05 - Erase fault memory”.

–	Press function “06-End output”.

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