Tacoma PreRunner V6-4.0L (1GR-FE) (2006)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
INSPECTION
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Check the resistance.
Using an ohmmeter, measure the resistance between the terminals.
NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to enter the terminals. After checking, wipe the water
off the engine coolant temperature sensor.
If the result is not as specified, replace the engine coolant temperature sensor.