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Home >> Toyota >> 2001 >> 4Runner Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0116: Engine Coolant Temperature Sensor Circuit Range/Performance >> Circuit Description
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Circuit Description

Engine Coolant Temperature (ECT) sensor is a thermistor sensor which monitors engine coolant temperature. DTC is set when ECT sensor signal value is out of range during engine operation. Possible causes are:

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