ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [AJ (3.0L Duratec)]

Note

• Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See Troubleshooting Procedure.)

Resistance Inspection

1. Disconnect the ECT sensor connector.

2. Remove the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [AJ (3.0L Duratec)].)

3. Place the detection part of the ECT sensor in water and while gradually increasing the water temperature, measure the resistance between the ECT sensor terminals.

• If it is not within the specification, replace the ECT sensor. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [AJ (3.0L Duratec)].)

• If the monitor item status/specification (reference) is not within the specification, even though the resistance is within the specification, perform the "Circuit Open/Short Inspection".

Measure the ECT sensor resistance.

ECT sensor characteristics graph (reference)