VAS 5051 or VAG 1551, Connecting

VAS 5051 or VAG 1551, Connecting

Special tools, testers and auxiliary items required

• Vehicle diagnostic, testing and information system ( VAS 5051)

Test Requirements

• Battery voltage at least 11 V

• Ground (GND) connections at engine and transmission OK

• Engine off

• Automatic transmission in the "P" or "N" position

Procedure

- Switch off the ignition and connect the VAS 5051 with accessory pack (VAS 5050/1). Alternatively, connect the scan tool (V.A.G 1551) with the diagnosis lead for the vehicle diagnostic, testing and information system ( VAS 5051 ).





• The following description only covers the procedure for On Board Diagnostic (OBD) when using the scan tool (V.A.G 1551).

• When using vehicle diagnostic, testing and information system (VAS 5051), follow the procedures described in the operating instructions for the tester.

*Indicated on display:

V.A.G - SELF-DIAGNOSIS HELP
1 - Rapid data transfer

--

V.A.G - SELF-DIAGNOSIS HELP
2- Flash code output

and

* alternating displays

• If display screen remains blank, refer to => Operating instructions for scan tool.

- Switch the ignition on.

- Switch on the scan tool printer by pressing Print button. Indicator lamp in button must come on.

- Press button 1 for "Rapid data transfer".

If the following is indicated on display:

Rapid data transfer HELP
Enter address word XX

• Address word 00 starts the automatic test sequence, i.e. the fault memories of all vehicle systems with self-diagnosis capability are interrogated by way of rapid data transfer.

- Enter "01" for the address word "Engine electronics " and confirm your entry by pressing the Q button.

The scan tool (VAG 1551) will display the control unit identification details, for example:

3B0907552A 2.7ltr. V6/5V G 0002 ->
Coding 05002 WSC 12345

• The control module identification can be printed out by pressing the PRINT button on the scan tool (VAG 1551).

Control module identification (example)