V.A.G 1551 scan tool, connecting and selecting function

WARNING: This page is about a different variant/trim than selected.

NOTE: All functions that have so far been carried out with V.A.G 1551 can now also be carried out with the tester VAS 5051.

Special tools and equipment

V.A.G 1551 or V.A.G 1552 scan tool vehicle system tester.

Fig 1: VAG 1551 Scan Tool
Courtesy of VOLKSWAGEN UNITED STATES, INC.

V.A.G 1551/3 or 1551/3A adapter cable

Fig 2: V.A.G 1551/3
Courtesy of VOLKSWAGEN UNITED STATES, INC.

NOTE:

The ABS function is switched off in the control module during the OBD. This is indicated by the flashing of ABS warning light -K47- and warning light for brake system -K118-. If there is a malfunction currently, it will be indicated by the lights being on constantly.
The DTC memory can be erased after successful check and repair.

Fig 3: V.A.G 1551 Connected To Data Link Connector Using Cable V.A.G 1551/3A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

With ignition switched off, connect V.A.G 1551 to diagnostic connection using cable V.A.G 1551/3 A.
Connect VAS 5051. Refer to Vehicle Diagnosis, Testing and Information System VAS 5051, connecting and selecting ABS control module .

Indicated on display:

V.A.G - On Board Diagnostic HELP
1 - Rapid data transfer1)
2 - Blink code output1)

1) Is displayed alternately

If the display remains blank, check Data Link Connector connection, Electrical check. Refer to Electrical check of Mark 60 , test steps 21 and 22.

NOTE:

Depending on the program, additional operating information can be printed out by pressing the HELP key of V.A.G 1551.
The → key is used for moving forward within the program
The PRINT key is used for switching on the printer (warning lamp in key comes on).

Indicated on display:

Rapid data transfer HELP
Enter address word XX

Press keys -0- and -3-; 03 to input address word of vehicle system to be tested: "Brake electronics".

Indicated on display:

Rapid data transfer Q
03 - Brake electronics

And then the display shows e.g:

1C0 907 379 E ESP FRONT MK60 0103 →
Coding 0011266 WSC XXXXX

Displayed is:

e.g. (1C0 907 379 E).

Allocation of control module see Parts catalog

Coding control module. Refer to ABS control module, coding .

Refer to V.A.G 1551 scan tool operating instructions

If the control module identification number does not appear; Summary of functions. Refer to List of selectable functions .

Indicated on display (select function, e.g. 02 - Interrogate fault memory).

Rapid data transfer HELP
Select function XX

Indicated on display:

Rapid data transfer HELP
Control module does not answer!

By pressing the HELP key, a list of possible fault causes is printed out.
After eliminating the possible causes of malfunctions, enter the address word 03 for "Brake electronics" again and confirm.

If "control module does not answer!" again appears:

Indicated on display:

Rapid data transfer HELP
control module does not answer!

Perform test steps 1, 2 and 3. Refer to Electrical check of Mark 60 , Electrical check.

Control module identification influenced during checking (possibly influenced from external sources?)

Rapid data transfer →
No signal from control module!

Check diagnostic wire as well as voltage supply and Ground connection for ABS Control Module (w/EDL) -J104-, Electrical check. Refer to Electrical check of Mark 60 .
After repairing the possible causes of the malfunction, again enter the address word 03 for "Brake electronics" and confirm with Q key.