Querying fault memory (VW Polo 3)

To interrogate the fault memory, you need the VAG 1551 fault code reader and the VAG 1551/3 cable.

1. Connect the VAG 1551 fault code reader (V.A.G 1552) and, by typing "01" "Address word", select the engine control unit. The engine should be idling. Turn on the printer of the fault code reader, the indicator light should light up. In cases where the engine does not start, turn on the ignition. The following information should be displayed:


2. Enter "02" to select the "Fault memory interrogation" function and confirm by pressing the "Q" button. The display should show the following information:

If one or more faults are stored

4. The stored faults are displayed and printed one by one. After reading them, the following information should appear on the display:

If there are no faults in the memory

5. Press "→". The display should show the following information:


6. Press "06" to select the "End diagnostics" function and confirm by pressing the "Q" button.