Causes and Fixes P0116 Code: Engine Coolant Temperature Sensor 1 Circuit Range/Performance

How to fix P0116 Code: Engine Coolant Temperature Sensor 1 Circuit Range/Performance
A P0116 code is set when the computer (ECM/PCM) detects the ECT sensor 1 input is very high, very low, or there is no voltage.

An Engine Coolant Temperature Sensor (ECT) is a Thermistor whose resistance changes with the temperature.

Causes of a P0116 code include a faulty ECT sensor, ECT wiring issues, engine overheating, or a ECM/PCM issue.

Possible Causes of a P0116 Code:
Bad Engine Coolant Temp (ECT)Sensor 1
(ECT)Sensor 1 Wiring Problem
Overheating or Cooling System Issues

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