Connecting fault readerV.A.G 1551 and selecting engine electronics control unit — AUDI

🧭 Before you start

Fits: platform codes 70A, 70B, 70C, 70E, 70H, 70J, 70K, 70L, 70M, 7DA, 7DB, 7DC, 7DE, 7DH, 7DJ, 7DK, 7DL, 7DM

• Special tools named: V.A.G 1551/1

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• Instead of the fault readerV.A.G 1551, the vehicle system testerV.A.G 1552 can also be used. However, no print-out can be produced.

🔧 Engine codes this applies to

📋 Procedure

1. Fold down storage compartment in front of relay plate.
2. Connect fault readerV.A.G 1551 with diagnosis cable V.A.G 1551/1 as follows:
3. First connect black connector for fault reader voltage supply to black diagnostic connection
4. Connect white connector to white diagnostic connection (blue connector is not required).
5. Unclip cover for diagnostic connector on right next to instrument cluster.

6. Connect fault readerV.A.G 1551. [Note: Instead of the fault readerV.A.G 1551, the vehicle system testerV.A.G 1552 can also be used. However, no print-out can be produced.]
7. Depending upon desired function: switch ignition on or start engine , "“Selectable functions”" table. [Note: If the display does not indicate as described in the work sequence:Fault reader operating instructionsIf due to an input fault "“fault in the data transfer!”" is displayed, pull cable off fault reader, reconnect and repeat work steps.]
8. Operate fault reader taking into account the information on the display:
9. Press key 1 for "“Rapid data transfer”".
10. Press keys 0 and 1 for address word "“Engine electronics”" and confirm entry with Q key.
11. Press → key.
12. Refer to repair operations for further procedure.

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