Self-Diagnosis

OPERATION
The task of the self-diagnosis feature is to detect and store malfunctions in Digital Motor Electronic (DME) components, the associated lines or in the memory of the control unit (ROM, RAM).

The DME control unit makes available substitute values in the event of sensor failure. These substitute values are cancelled once again as soon as normal operation can be resumed.

To facilitate fast and convenient troubleshooting, the stored defect codes or current values can be monitored from the DME control unit with the aid of a BMW DIAGNOSTIC SYSTEM or equivalent.