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Home >> Lexus >> 2009 >> IS 350 >> Repair and Diagnosis >> External Pages >> Different car >> Section 139 (Engine Control System (DTCS P0010 - P0368)) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
ECT SENSOR COLD START MONITOR

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

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