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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

INSPECTION




1. DRAIN ENGINE COOLANT

2. REMOVE ECT SENSOR
a. Disconnect the engine wire protector from the 3 brackets.
b. Disconnect the ECT sensor connector.




c. Using a 19 mm deep socket wrench, remove the ECT sensor and gasket.




3. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the terminals.

Resistance: Refer to the chart graph

If the resistance is not as specified, replace the ECT sensor.

4. REINSTALL ECT SENSOR
a. Install a new gasket to the ECT sensor.
b. Using a 19 mm deep socket wrench, install the ECT sensor.
Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

c. Connect the ECT sensor connector.
d. Install the engine wire protector to the 3 brackets.

5. REFILL WITH ENGINE COOLANT