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Home >> Subaru >> 2015 >> BRZ Limited, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnostics (2 Of 3) >> DTC P0197 Engine Oil Temperature Sensor Low; DTC P0198 Engine Oil Temperature Sensor High >> Monitor Description >> P0197, P0198

P0197, P0198

The ECM observes the sensor voltage, and uses this value in calculating the engine oil temperature. If the sensor output voltage is outside the range of normal operations, the ECM interprets that as trouble with the engine oil temperature sensor, and records a DTC.