The P0198 trouble code indicates a high signal from the engine oil temperature sensor. This code typically points to issues related to the sensor responsible for monitoring the temperature of the engine oil, potentially causing operational problems or inaccurate temperature readings due to a high signal.
Engine Oil Temperature Sensor High
Code symptoms P0198.
1. Engine overheating.
2. Decreased fuel efficiency.
3. Illumination of the Check Engine Light.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0198.
1. Malfunctioning or faulty engine oil temperature sensor.
2. Wiring or connector issues within the sensor circuit.
3. Potential problems with the Engine Control Module (ECM).
Code Solutions P0198.
1. Replace the engine oil temperature sensor if it is malfunctioning or providing high signals.
2. Check and repair any wiring or connector issues in the sensor circuit.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.