P1647
P164700Diagnosis information DME control unit
Coding
Diagnostic conditions
The control unit must be active in order to test internal function sequences and diagnosable inputs/outputs.
In the event of a fault, check whether the fault is permanently >present<. To perform the check, erase the fault memory, meet the diagnostic conditions and read out the fault memory again.
- Ignition on
Possible fault causes
- incorrectly coded
NOTE:
Diagnosis/Fault finding.
- Various restrictions are possible due to incorrect coding in the DME control unit
- Flash DME control unit again
- Perform automatic coding