The P0119 trouble code indicates an intermittent issue within the engine coolant temperature (ECT) sensor circuit. This code typically points to sporadic problems with the sensor responsible for measuring the temperature of the engine coolant, affecting the engine’s performance and fuel efficiency.
Engine Coolant Temperature Circuit Intermittent
Code symptoms P0119.
1. Intermittent engine temperature fluctuations.
2. Inconsistent fuel efficiency.
3. Occasional malfunction indicator light (MIL) illumination.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0119.
1. Faulty engine coolant temperature sensor.
2. Intermittent wiring or connector issues within the sensor circuit.
3. Intermittent problems with the Engine Control Module (ECM).
Code Solutions P0119.
1. Inspect and replace the engine coolant temperature sensor if it is faulty.
2. Check for any intermittent wiring or connector issues in the sensor circuit and repair as needed.
3. If intermittent ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.