Resistance Inspection: Notes
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the ECT sensor connector.
- Remove the ECT sensor.
- Place the detection part of the ECT sensor in water and verify that the resistance between ECT sensor terminals A and B is as indicated in ECT SENSOR RESISTANCE while gradually increasing water temperature.
- If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
- If not within the specification, replace the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION ).
ECT SENSOR RESISTANCE
| Water temperature (°C {°F}) | Resistance (ohm) |
|---|---|
| 20 {68} | 2,205-2,695 |
| 80 {176} | 287-349 |
| 91 {196} | 227-240 |