P0116 Engine coolant temperature circuit range/performance problem

P0116  Engine coolant temperature circuit range/performance problem

Check Conditions
Engine coolant temperature was 7°C (45°F) or more immediately before the engine was stopped at the last drive. Engine coolant temperature was 7°C (45°F) or more when the engine started.
Judgement Criteria
Engine coolant temperature fluctuates within 1°C (1.8°F) after 5 minutes have passed since theengine was started. However, time is not counted if any of the following conditions are met.
1. Intake air temperature is 60°C (140°F) or more.
2. Volume airflow sensor output frequency is 70 Hz or less.
3. During fuel shut-off operation.
The PCM monitors for this condition once during the drive cycle.


- Engine coolant temperature sensor failed.
- Open or shorted engine coolant temperature sensor circuit, or loose connector.
- PCM failed.