Tacoma PreRunner 2WD V6-3.4L (5VZ-FE) (2003)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
INSPECTION
1. DRAIN ENGINE COOLANT
2. DISCONNECT UPPER RADIATOR HOSE FROM WATER OUTLET
3. REMOVE NO.2 TIMING BELT COVER
4. REMOVE FUEL PIPE
Remove the 2 union bolt, 4 gaskets and fuel pipe.
5. REMOVE ECT SENSOR
a. Disconnect the ECT sensor connector.
b. Using a 19mm deep socket wrench, remove the ECT sensor and gasket.
6. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the terminals.