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.
2021 Hyundai Palisade Calligraphy, FWDFACTORY OEM SERVICE PROCEDURE
Repair Procedures: Inspection
- Switch "OFF" the ignition.
- Disconnect the OPS connector.
- Remove the OPS.
- After immersing the thermistor of the sensor into engine coolant, measure resistance between the OPS terminals 2 and 4.
- Check that the resistance is within the specification.
Pressure (Bar) Output Voltage (V)
[Vref=5V]0 0.46-0.54 2 1.25-1.35 4 2.05-2.15 6 2.84-2.96 10 4.42-4.58
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.