Engine Coolant Temperature Sensor
Disconnect Engine Coolant Temperature (ECT) sensor connector. Using an ohmmeter, measure resistance between ECT sensor terminals. See ENGINE COOLANT TEMPERATURE SENSOR SPECIFICATIONS (ME7) or ENGINE COOLANT TEMPERATURE SENSOR VALUES (DENSO) table. If resistance is not as specified, replace sensor.
ENGINE COOLANT TEMPERATURE SENSOR SPECIFICATIONS (ME7)
| Temperature - °F (°C) | Voltage | Resistance - Ohms |
|---|---|---|
| 0 (0) | 2.65 | 5740 |
| 50 (10) | 2.10 | 3700 |
| 68 (20) | 1.62 | 2450 |
| 104 (40) | 0.92 | 1150 |
| 176 (80) | 0.29 | 318 |
| 212 (100) | 0.17 | 184 |
ENGINE COOLANT TEMPERATURE SENSOR VALUES (DENSO)
| Temperature - °F (°C) | Voltage | Resistance - Ohms |
|---|---|---|
| 32 (0) | 3.96 | 5740 |
| 50 (10) | 3.56 | 3700 |
| 68 (20) | 3.10 | 2450 |
| 104 (40) | 2.17 | 1150 |
| 176 (80) | 0.87 | 318 |
| 212 (100) | 0.55 | 184 |