Antilock Brakes / Traction Control Systems: Service Precautions

Safetv Precautions And Fundamental Points Regarding Troubleshooting

ABS is a vehicle safety system; appropriate knowledge is necessary to work on the system.

In order to check complaints and to be able to carry out pin-pointed troubleshooting, DTC memory must be checked before starting work on the ABS or ABS/EDL system.

Do not disconnect or re-connect harness connectors when the ignition is switched on.

Observe the appropriate instructions regarding the handling of brake fluid.

ABS malfunctions are indicated by the ABS warning light coming on; certain malfunctions will not be recognized at speeds below 20 km/h (12 mph); carry out a road test.

If the ABS warning light -K47- and the warning light for the brake system _K118- do not come on, but the brake system is still not functioning correctly, then the malfunction must be diagnosed in the conventional braking system (e.g. leaks in the brake hydraulic system).