DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem: Description

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0115 .

DTC DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
P0116	When either of following conditions met (2 trip detection logic): When cold engine started and engine warmed up, Engine Coolant Temperature (ECT) sensor value does not change. After warmed up engine stopped and then next cold engine start performed, ECT sensor value does not change.	Thermostat Engine Coolant Temperature (ECT) sensor