Vehicle diagnostic, testing and information system VAS 5051 or scan tool V.A.G 1551 , connecting

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Test requirements:

NOTE:

Battery voltage at least 11 V
Ground (GND) connections at engine and transmission OK
Engine off
Automatic transmission in position "P" or "N"

Procedure

Fig 1: Identifying Vehicle Diagnosis, Testing and Information System VAS 5051 and Data Link Connector (DLC)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Switch off ignition and connect 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.

NOTE:

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.

* See note 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

NOTE:

If display screen remains blank: Operating instructions for scan tool

Switch ignition on.
Switch on 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

NOTE:

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 V.A.G 1551 will display the control unit identification details, for example:

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

NOTE:

The control module identification can be printed out by pressing the PRINT button on the scan tool V.A.G 1551.

Control module identification (example)

3B0907552 A	Part No, allocation.
2.7 ltr.	Engine capacity
V6/5V	Engine design (V-engine with 6 cylinders, 5 valves)
"G" or no display	Vehicle with or without cruise control system
0002	Data level (software version) of the control module
Code 05002	Control module code
WSC 12345	Dealership identifier of V.A.G 1551 with which coding was last performed