P0198

P019800

Diagnosis information DME control unit

Oil temperature sensor

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
- no communication
- Short circuit to ground
- Short circuit to B+
- Signal implausible

NOTE:
Diagnosis/Fault finding.
- No data about engine oil level and engine oil temperature
- Sensor or wiring faulty
- Perform a line test