Antilock Brakes / Traction Control Systems: Description and Operation

The ABS consists of wheel speed sensors, stop light switch, hydraulic unit and the ABS-ECU. If a problem occurs in the system, the malfunctioning system can be identified by means of the diagnostic function.

The diagnostic trouble code will not be erased even if the ignition switch is turned to OFF In addition, reading of diagnostic trouble codes, service data and actuator testing are possible using the scan tool.