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Injection system > < Engine control unit with anti-theft protection: removing and fitting

Leon Mk1

Interrogating and erasing engine control unit fault memory
Interrogating and erasing engine control unit fault memory
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Vehicle diagnosis, measuring and information system -VAS 5051 A-
–  Connect the Vehicle information, measurement and diagnosis system -VAS 5051 A- as follows:
  W00-1236
–  Plug the connector of the diagnosis cable into the diagnosis socket in the footwell on the driver's side.
–  Start engine and run at idling speed.
Only when engine does not start:
–  switch ignition on.
Selecting the operating mode:
–  On the screen, push the “Vehicle self-diagnosis” button.
Selecting vehicle system:
–  Touch the screen on “01 - Engine electronics”.
  E90-10021
The identification of the control unit is displayed on the screen, together with its code -2-, the chassis number in the middle, and the electronic immobiliser identification number.
  Note
This information can be printed out. Now, press the “Print” button.
Select diagnostic function
–  Press button “02 - Interrogate fault memory” on display.
–  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.
–  Press button “05 - Erase fault memory” on display.
–  Press function “06-End output”.
  Note
After deleting the fault memory, the conformance code must be generated → Vehicle diagnosis, testing and information system VAS 5051“Guided function”.
  A87-0314

Injection system > < Engine control unit with anti-theft protection: removing and fitting