System Diagnostics

4. System diagnostics

The electronic diesel system is tested and/or system malfunctions are detected and stored by the self-diagnostics program integrated in the EDS control unit.

Temporary malfunctions are stored if they last longer than 4 seconds.

For example, sensor malfunctions (except for the engine speed sensor) are stored, as are short circuits in the actuators and their input wiring. The individual malfunction codes can be read with the impulse counter via the test connection for diagnosis (X11/4), socket 4. Depending on the malfunction code displayed, the defective component or its wiring can be determined.