DUCT TEMPERATURE SENSOR INSPECTION

PROCEDURE


  1. INSPECT COOLER (DUCT SENSOR) THERMISTOR


    1. Measure the resistance according to the value(s) in the table below.

      A001FC8E01
      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 10°C (50°F) 9.4 to 10.5 kΩ
      1 - 2 15°C (59°F) 7.5 to 8.3 kΩ
      1 - 2 20°C (68°F) 6.0 to 6.5 kΩ
      1 - 2 25°C (77°F) 4.5 to 5.2 kΩ
      1 - 2 30°C (86°F) 3.8 to 4.2 kΩ
      1 - 2 35°C (95°F) 3.1 to 3.4 kΩ
      1 - 2 40°C (104°F) 2.5 to 2.8 kΩ
      1 - 2 45°C (113°F) 2.0 to 2.3 kΩ
      1 - 2 50°C (122°F) 1.6 to 2.0 kΩ
      1 - 2 55°C (131°F) 1.3 to 1.6 kΩ
      1 - 2 60°C (140°F) 1.1 to 1.4 kΩ

      Note


      • Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor.

      • When measuring the resistance, the sensor temperature must be the same as the ambient temperature.

      Text in Illustration
      *a

      Component without wire harness connected

      (Cooler (Duct Sensor) Thermistor)
      *b Maximum permissible value line
      *c Minimum permissible value line
      *d Resistance (kΩ)
      *e Temperature (°C (°F))

      Tech Tips

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

      If the result is not as specified, replace the cooler duct sensor thermistor.