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P0116, P0117, P0118

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp comes on, difficult on cold starts

P0116, P0117, P0118


Engine Coolant Temperature Sensor. All embracing DTC for temperature sensor operation.

Engine Coolant Temperature Sensor Circuit. Short to Ground.

Engine Coolant Temperature Sensor Circuit. Short to B+ / Open circuit.


Fault symptoms

CHECK ENGINE lamp comes on, difficult on cold starts

Conditions

Voltage less then 0.03 volt or greater then 4.96 volts or abnormal rises in temperature after starting in relation to the programmed model that can be found in the control module's permanent memory.

Note

If there is a decline in function the control module chooses a pre-programmed value corresponding to 80°C (176°F), which means the car can be difficult to start when the engine is cold due to the fuel/air mixture being too lean.