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.
Es250 Water Temperature Sensor
Using a DVOM, measure resistance between water temperature sensor terminals. For water temperature sensor location, see Figure. See WATER TEMPERATURE SENSOR RESISTANCE table. If water temperature sensor is not within specification, replace sensor.
| Temperature | Ohms |
|---|---|
| 176°F (80°C) | 1530 |
| 194°F (90°C) | 1180 |
| 203°F (95°C) | 1030 |
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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.