Resistance Inspection: Notes
WARNING: This page is about a different car, the 2005 Mazda RX-8 and 2004 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 the table 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 SPECIFICATIONWater temperature (°C {°F}) Resistance (ohm) 20 {68} 2,205-2,695 80 {176} 287-349 91 {196} 227-240