Tundra 4WD V8-4.7L (2UZ-FE) (2003)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE THROTTLE BODY COVER
3. REMOVE INTAKE AIR CONNECTOR
4. DISCONNECT THROTTLE BODY FROM INTAKE MANIFOLDS
a. Remove the 2 bolts and 2 nuts, and disconnect the throttle body from the intake manifold.
b. Remove the gasket.
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 graph
If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR
a. Install a new gasket and the ECT sensor.
Torque: 19.6 N.m (200 kgf.cm, 14 ft.lbf)
b. Connect the ECT sensor connector.