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Engine Coolant Temperature Sensor: Inspection

WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard resistance 

        STANDARD RESISTANCE

        Tester Connection Specified Condition
        1 (E2) - 2 (THW) 2.32 to 2.59 kΩ at 20°C (68°F)
        1 (E2) - 2 (THW) 0.310 to 0.326 kΩ at 80°C (176°F)
        Fig 1: Identifying Resistance Between Engine Coolant Temperature Sensor Terminals
        G05108977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        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.

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