Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 Kia Carnival EXFACTORY OEM SERVICE PROCEDURE
Description & Operation: Description
- Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage of the cylinder head for detecting the engine coolant temperature.
- The thermistor of ECTS has a characteristic of Negative Temperature Coefficient (NTC), which means temperature and resistance are inversely propotional to each other.
- The reference +5 V is supplied to the ECTS via a resistor in the ECM. That is, the resistor in the ECM and the thermistor in the ECTS are connected in series.
- To prevent the engine stop or hesitation during the cold start, the ECM calibrates the fuel injection amount and the injection timing based on the engine coolant temperature information.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.