With Engine Running

P164D00

Diagnosis information DME control unit

Oil pressure switch

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.

- Engine running

Possible fault causes
- Malfunction

NOTE:
Diagnosis/Fault finding.
- Check of oil/oil pressure when switch operated
- Check of electrical wiring and connectors
- Check of function using drive link test