VAS 5051 Tester or VAG 1551 Scan Tool, Connecting and Selecting Functions

VAS 5051 Tester Or VAG 1551 Scan Tool, Connecting And Selecting Functions

Test requirements
- Battery voltage at least 11 V
- Ground connections at engine and transmission OK
- Fuses OK
- Ground (GND) connections and Ground point for transmission OK

- Check battery Ground (GND) strap and Ground strap between battery and transmission.
- Switch ignition off.







- Connect VAS 5051 tester to vehicle with VAS 5051/1 diagnostic wire. Alternately, VAG 1551 Scan Tool (ST) can also be attached using VAG 1551/3 adapter cable.

WARNING:
- When performing measurements and testing during road test, VAS 5051 tester or VAG 1551 Scan Tool (ST) must always be secured to the rear seat and operated from there.
- Observe all safety precautions.

Indicated on display:

VAG - On Board Diagnostic (OBD) HELP
1- Rapid data transfer1)
2- Blink code output1)

1) Indicated alternately on display

NOTE: If nothing appears in display:

See Operating instructions for Scan Tool (ST)
- Switch ignition on
- Switch printer on via the PRINT button (indicator lamp in button lights up).
- Press button 1 to select "Rapid data transfer" operating mode 1.

Indicated on display:

Rapid data transfer HELP
Enter address word XX

NOTE: The address word 00 initiates the automatic test sequence, i.e. it results in a DTC check on all OBD capable systems in the vehicle via rapid data transfer.