P0643

P0643

Diagnosis information - DME V6 DFI

Sensor voltage 1

NOTE:
A fault is detected when:
- voltage drops below 4.7 V (P0642)
or
- voltage exceeds 5.3 V (P0643)

Diagnostic conditions
- Engine running > 5 seconds

Possible fault causes
- Short circuit to B+ or ground in the lines or connected components

Affected contacts on the DFI control unit connector
Connector [A]:
- Contact 37
- Contact 26

Connector [B]
- Contact 58