Troubleshooting

DTC P0116 Engine Coolant Temperature Circuit Range/Performance Problem

DTC Detecting Condition:

CIRCUIT DESCRIPTION
A thermistor built in the engine coolant temperature sensor changes the resistance value by the engine coolant temperature.

The structure of the sensor and connection to the ECM is the same as one in the intake air temperature circuit malfunction.






HINT: After confirming DTC P0115, use the hand-held tester or OBD II scan tool to confirm the engine coolant temperature from the CURRENT DATA.

Step 1 - 2:

INSPECTION PROCEDURE

HINT:
- If DTC's P0115 and P0116 are output simultaneously, engine coolant temperature sensor circuit may be open. Perform the troubleshooting of DTC P0115 first.
- Read freeze frame data using the hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when the malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.