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Home >> Lexus >> 2000 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Coolant Temperature Sensor/Switch (For Computer) >> Testing and Inspection >> Coolant Temperature Sensor
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Coolant Temperature Sensor

INSPECTION

1. REMOVE V-BANK COVER
2. REMOVE INTAKE AIR CONNECTOR
3. DRAIN ENGINE COOLANT
4. DISCONNECT THROTTLE BODY

5. REMOVE ECT SENSOR

a. Disconnect the ECT sensor connector.




b. Remove the ECT sensor and gasket.




6. 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 sensor.

7. REINSTALL ECT SENSOR
a. Install a new gasket and the ECT sensor.

Torque: 20 Nm (200 kg.cm, 14 ft.lb)

b. Connect the ECT sensor connector.

8. RECONNECT THROTTLE BODY
9. REFILL WITH ENGINE COOLANT
10. REINSTALL INTAKE AIR CONNECTOR
11. REINSTALL V-BANK COVER