Engine Coolant Temperature Sensor
- ECT sensor is located in coolant pipe, near throttle body and contains a Red/White wire and Green/White wire in harness connector. See Figure
.
- Disconnect harness connector from ECT sensor. Measure sensor resistance in accordance with engine coolant temperature. See ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE
table. Replace ECT sensor if resistance is not as specified.
ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) |
Ohms |
| -4 (-20) |
15,000-18,000 |
| 68 (20) |
2500-3500 |
| 175 (80) |
400-600 |
| 212 (100) |
250-350 |