Engine Coolant Temperature (ECT) Sensor
Remove sensor from intake manifold and place in water with a thermometer. Heat water to specified temperature and check resistance. See ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE table. Replace sensor if resistance is not within specification.
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Temperature °F (°C) | Ohms | |
|---|---|---|
| Esteem, Sidekick 1.8L & Swift | ||
| 32 (0) | 5740 | |
| 68 (20) | 2280-2610 | |
| 104 (40) | 1150 | |
| 140 (60) | 584 | |
| 176 (80) | 303-326 | |
| Sidekick 1.6L & X-90 | ||
| 32 (0) | 5210-6370 | |
| 68 (20) | 2210-2690 | |
| 104 (40) | 1140 | |
| 140 (60) | 580 | |
| 176 (80) | 290-350 | |