939003639 - K161 ENGINE OIL TEMPERATURE GAUGE NOT WORKING

With the ignition ON, the engine oil temperature gaute in the additional instrument panel is not working
the engine oil temperature faulty signal is made available to the instrument panel and, via a serial line, to the gauge.
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Keeping the Examiner diagnostic equipment connected to the diagnostic socket, check the operation of the pointer through active diagnosisMove on to Step 21.The pointer does not work for the serial line with the NQS interrupted1.Renew serial line
2.Instrument power supply interrupted2.Restore power supply
3.Instrument defective3.Replace gauge    Op. 5560C51 COMBINED ANALOGUE CONTROL PANEL - R+R OR REPLACE
2ELECTRICAL CIRCUIT CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the continuity/insulation of the connection between the engine oil temperature sensor and the instrument panel    See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT Move on to Step 3Cable interrupted/not insulatedRestore continuity/insulation of the cable.
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis