This demonstration shows VAG-COM used on a car to diagnose a problem with the ABS system. Various tests and procedures are shown including

  • It demonstrates reading fault codes and saving the displayed fault code to a file.
  • The code is cleared and after rechecking is found to have immediately re-occured. This indicates the fault is present on the car so further testing is shown
  • Next the demonstration shows how the output from each wheel speed sensor is measured and displayed by the software as the car is driven a short distance by an assistant.
  • The speed signal from each sensor is shown in the measuring blocks and the output can be seen to count up from 0 kph to approximately 10 kph on three wheels while one wheel remained at 0 kph.
  • The output is also shown using the VAG-Scope tool which is included on the CD. This demonstrates how the wheel speeds can be recorded and viewed after a short drive when there is no assistant available to drive the car.
  • Finally the ABS pump, brake pedal switch and modulator valve block are tested using the output tests part of the tool.


Click here to view the demo movie (440kb)

Additional information