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Ambient Temperature Sensor: Inspection

  1. INSPECT AMBIENT TEMPERATURE SENSOR 
    1. Measure the resistance according to the value(s) in the table below

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATIONS

      Tester Connection Condition Specified Condition
      1-2 10°C (50°F) 3.00 to 3.73 kΩ
      1-2 15°C (59°F) 2.45 to 2.88 kΩ
      1-2 20°C (68°F) 1.95 to 2.30 kΩ
      1-2 25°C (77°F) 1.60 to 1.80 kΩ
      1-2 30°C (86°F) 1.28 to 1.47 kΩ
      1-2 35°C (95°F) 1.00 to 1 22 kΩ
      1-2 40°C (104°F) 0 80 to 1.00 kΩ
      1-2 45°C (113°F) 0 65 to 0.85 kΩ
      1-2 50°C (122°F) 0 50 to 0 70 kΩ
      1-2 55°C (131°F) 0.44 to 0.60 kΩ
      1-2 60°C (140°F) 0.36 to 0.50 kΩ
      NOTE:
      • Hold the sensor only by its connector. Touching the sensor may change the resistance value.
      • When measuring, the sensor temperature must be the same as the ambient temperature.

      HINT.

      As the temperature increases, the resistance decreases (see the graph).

      If the resistance is not as specified, replace the ambient temperature sensor

      Fig 1: Inspecting Ambient Temperature Sensor
      G05755447Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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