Leon Mk2
Fault memory
Interrogating and erasing engine control unit fault memory
If the fault memory is erased, the engine control unit will forget some learnt values. Depending on the mileage of the vehicle, this could cause engine running problems. In this case:
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
Work sequence Note: All functions which could previously be performed with V.A.G 1551/1552 can also be performed with the new tester VAS 5051.
Only when engine does not start:
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→ Indicated on display: |
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→ The number of faults stored or "No fault recognised!" will be shown on the display. |
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If no fault is stored:
If one or more faults are stored: The stored faults will be displayed and printed out one after the other. |
→ After the stored faults have been printed out, the display will show: |
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→ Indicated on display: |
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Note: If the ignition is switched off between "Interrogate fault memory" and "Erase fault memory", the fault memory will not be erased. Some faults (e.g. EPC) can only be erased after switching the ignition off and on once.
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→ Indicated on display: |
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