Connecting VAG 1551/VAS 5051

Test Conditions

- Battery voltage at least 11 V
- Ground connections on engine and transmission OK
- Fuses OK
- Ground connections and Ground point for transmission OK
- Check battery Ground strap and Ground strap between battery and transmission.
- Switch off ignition.







- Connect VAG 1551 Scan Tool (ST) with lead VAG 1551/3 or connect VAS 5051 with lead VAS 5051/1.

NOTE: The Data Link Connector (DLC) is located under the instrument panel, left.

WARNING:
- When taking test readings while the vehicle is moving, VAG 1551 Scan Tool must always be secured to the rear seat and operated from this position.
- DO NOT USE VAS 5051 during a road test.

Indicated on display:

VAG - ON BOARD DIAGNOSTIC HELP
1 - Rapid data transfer*
2 - Flash code output*

* Appears alternately

NOTE:
If the display remains blank:
- Switch on ignition
- Switch on printer with the Print button (Warning lamp in button lights up).
- Press button -1- for "Rapid data transfer."

Indicated on display:

Rapid data transfer HELP
Enter address word XX

NOTE: Address word 00 is used to carry out the automatic test sequence, i.e. checking the DTC memory via rapid data transfer for all vehicle systems with On Board Diagnostic (OBD) capability.