P0115

DTC P0115 / ENGINE COOLANT TEMPERATURE CIRCUIT MALFUNCTION

- Open or short between sensor and ECM.
- Bad connection of connectors / bad wiring.
- Malfunction of sensor.





CIRCUIT DIAGRAM





TROUBLESHOOTING
If the fast idle speed is not enough or the engine gives off dark smoke during the engine warm-up operation, the engine coolant temperature sensor might be the cause.