Antilock Brakes / Traction Control Systems: Testing and Inspection

VAS 5051 Connecting and Selection Functions

Special tools, testers and auxiliary items required

• Vehicle Diagnostic, Testing and Information System (VAS 5051)

• Diagnostic Cable (VAS 5051/1) or (VAS 5051/3)


• During a test drive, the testing and measuring equipment must always be secured on the back seat.

• These devices may be operated only by a passenger during a test drive.

- Connect the diagnostic cable (VAS 5051/1) or (VAS 5051/3) to the diagnostic connection.

- Turn on the tester - arrow -.






The tester is operational when it displays a picture of a car.

- Turn on the ignition.

- Touch Guided Fault Finding.

- Select in succession:

• Brand

• Type

• Model year

• Version

• Engine Code

- Confirm the data entered.

Wait until the tester has checked all the control modules in the vehicle.

- Press GO TO and select "function/component selection".

- Select "suspension" on the display.

- Select "brake system" on the display.

- Select "01 - On Board Diagnostic (OBD) capable system" indicated on display.

- Select "anti-lock braking system"

- Select "function" indicated on display.

Now, all possible functions of the Anti-lock Brake System (ABS) installed in the vehicle will be displayed.

- Select desired function on display.