OBDII Code List > P0116 HONDA
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P0116 HONDA
P0116 HONDA - Engine Coolant Temperature Sensor 1 Circuit Range/Performance Problem
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Possible causes
- Low engine coolant level
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
When is the code detected?
Coolant temperature signal sent to the ngine Control Module (ECM) is not within specified range.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0116 HONDA 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.
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