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Home >> Lexus >> 2007 >> IS 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FSE) - DTC P0010 - P0128 >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

ECT sensor cold start monitor: 

MALFUNCTION THRESHOLDS - ECT SENSOR COLD START MONITOR

ECT sensor value change Less than 5°C (9°F)

ECT sensor soak monitor: 

MALFUNCTION THRESHOLDS - ECT SENSOR SOAK MONITOR

Different between current ECT sensor value and previous ECT sensor value when engine stopped Less than 5°C (9°F)
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