Engine Coolant Temperature Sensor: Inspection: Inspection

2013 Toyota 4Runner Limited, AWDSECTION Inspection
  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    Fig 1: Inspecting Engine Coolant Temperature Sensor
    GTY211665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *1 Resistance *2 Temperature
    *3 Acceptable - -
    1. Partially immerse the sensor in water and warm up the water.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 Approx. 20°C (68°F) 2.32 to 2.59 kΩ
      Approx. 80°C (176°F) 0.310 to 0.326 kΩ

      If the result is not as specified, replace the sensor.

      NOTE:

      When checking the sensor in water, keep the terminals dry. After the check, wipe the sensor dry.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.