2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 383
Is the inspection result normal?
YES - INSPECTION END
NO - Replace engine oil temperature sensor.
P0198
P0197, P0198 EOT SENSOR
Description
The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in
temperature. The electrical resistance of the thermistor decreases as temperature increases.
