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.
2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Engine Coolant Temperature Sensor
WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
- Check resistance between engine coolant temperature sensor terminals 1 and 2 as shown in the figure.
Courtesy of NISSAN MOTOR CO., U.S.A.
< Reference data>Β
ENGINE COOLANT TEMPERATURE AND RESISTANCEEngine coolant temperature Β°C (Β°F) Resistance kΞ© 20 (68) 2.1-2.9 50 (122) 0.68-1.00 90 (194) 0.236-0.260 - If NG, replace engine coolant temperature sensor.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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