P1559

P1559

Diagnosis information - DME (DFI)

Power supply without engine operation

NOTE: This fault is detected if the voltage connected to the DME control unit is less than 6 V during start.

Diagnostic conditions
- Engine start

Possible fault causes
- Vehicle voltage less than 6 V during start (e.g. battery discharged or faulty)
- Contact resistance in the lines to the DME control unit