Engine Coolant Temperature Sensor: Inspection

2008 Toyota RAV4 Limited, 2.4 D, FWDSECTION Inspection
  1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR 
    Fig 1: Identifying Engine Coolant Temperature Sensor
    G04973365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance of the sensor.
      Fig 2: Identifying Resistance Of Engine Coolant Temperature Sensor
      G05183820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      RESISTANCE SPECIFICATION

      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)
      NOTE: If checking the sensor in water, be careful not to allow water to contact the terminals. After checking, wipe the water off the sensor.

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

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.