1. Remove ashtray insert 1 and connect the VAG 1551 fault code reader using the VAG 1551/3 cable (fig. 12.33).
2. The display should show the following information:
3. Turn on the ignition.
4. Turn on the printer by pressing the "Print" button (the indicator light should come on).
5. Press "1" to select the "Fast Data Transfer" function.
Determining the version of the instrument cluster control unit
6. The display should show the following information:
7. Press buttons "1" and "7" to select the "Instrument Cluster" function. The display should show the following information:
8. Confirm by pressing the "Q" button. The display should show the following information:
9. When indicated on the display:
Press the "HELP" button to be able to print the fault codes. After receiving the fault code list, enter the address word "17" "Instrument cluster" and confirm by pressing the "Q" button. The following information should appear on the display:
10. Press "→". The display should show the following information:
11. After pressing the "HELP" button you will receive a printed list of possible functions.
| 01 | Poll the control unit version |
| 02 | Querying fault memory |
| 03 | Final diagnostics |
| 05 | Erase fault memory |
| 06 | Completing the output |
| 07 | Control unit coding |
| 08 | Reading a block of measured values |
| 10 | Adaptation |
Querying fault memory
12. Turn on the printer by pressing the "Print" button (the indicator light should come on). The display should show the following information:
13. Dial "02" to select the "Fault Memory Interrogation" function. The display should show the following information:
14 Confirm by pressing the "Q" button. The display should show the following information:
The fault numbers are displayed on the screen and printed one after the other.
15. If there are no faults in the memory, the program will return to the starting point after pressing "→".
The display should show the following information:
16. Press "06" to select the "End diagnostics" function and confirm by pressing the "Q" button.
17. Turn off the ignition and disconnect the tester.
Clearing fault memory
18. Once the memory has been successfully read, dial "05" to select the "Clear Fault Memory" function and confirm by pressing the "Q" button. The display should show the following information:
19. Confirm by pressing the "Q" button. The display should show the following information:
The fault memory is cleared. The display should show the following information:
20. Press "06" to select the "End Output" function. The display should show the following information:
21. Confirm by pressing the "Q" button. The display should show the following information:
22. Turn off the ignition and disconnect the tester.
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