Coolant Temperature Sensor (ES300, SC300 & SC400)
Using a DVOM, measure resistance between coolant temperature sensor terminals. For coolant temperature sensor location, see Figure, Figure or Figure. See COOLANT TEMPERATURE SENSOR RESISTANCE table. If coolant temperature sensor resistance is not within specification, replace sensor.
COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature | Ohms |
|---|---|
| 176°F (80°C) | 1530 |
| 194°F (90°C) | 1180 |
| 203°F (95°C) | 1030 |