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Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Control System (Except Plug-In) (Diagnostic Codes (P0010-P043F))) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

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ENGINE COOLANT TEMPERATURE SENSOR COLD START MONITOR

Engine coolant temperature sensor value change Less than 5°C (9°F)
ENGINE COOLANT TEMPERATURE SENSOR SOAK MONITOR

Difference between current engine coolant temperature sensor value and previous engine coolant temperature sensor value when engine stopped Less than 5°C (9°F) (varies with engine coolant temperature of last trip engine stop)