Engine Coolant Temperature (ECT) Sensor
- A malfunction in the engine coolant temperature sensor circuit will set a related diagnostic trouble code. For testing procedures, see TESTS W/CODES article in this section. An out-of-calibration ECT sensor may not set a diagnostic trouble code. Use following procedure to test sensor calibration.
- Remove engine coolant temperature sensor. Refer to the ENGINE COOLANT TEMPERATURE (ECT) SENSOR LOCATION . Using ohmmeter, measure resistance of engine coolant temperature sensor at designated temperatures. Replace ECT sensor if not within specification. See ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE .
ENGINE COOLANT TEMPERATURE (ECT) SENSOR LOCATION
| Application | Location |
|---|---|
| Metro | On Side Of Throttle Body |
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Temperature: °F (°C) | Ohms |
|---|---|
| 0 (-18) | 14,650 |
| 19 (-7) | 8100 |
| 39 (4) | 4780 |
| 70 (21) | 2350 |
| 100 (38) | 1250 |
| 160 (71) | 400 |
| 210 (99) | 190 |