P1116 ACURA – Engine Coolant Temperature Sensor Performance Problem

P1116 ACURA Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1116 ACURA Possible Causes

Low engine coolant level,Faulty Engine Coolant Temperature (ECT) sensor,Engine Coolant Temperature (ECT) sensor harness is open or shorted,Engine Coolant Temperature (ECT) sensor electrical circuit poor connection,Faulty engine coolant thermostat

P1116 ACURA Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.