Room Temperature Sensor Inspection

Heater & Air Conditioning System. Lexus Is250, Is220D. Gse20 Ale20
Air Conditioning. Lexus Is250, Is220D. Gse20 Ale20

  1. INSPECT ROOM TEMPERATURE SENSOR

Room Temperature Sensor -- Inspection



1. INSPECT ROOM TEMPERATURE SENSOR


    Lexus Is250, Is220D. Gse20 Ale20.Air Conditioning.Air Conditioning System.Room Temperature Sensor  Inspection
  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    Condition
    Specified Condition
    J38-1 - J38-2
    10°C (50°F)
    3.00 to 3.73 kΩ
    J38-1 - J38-2
    15°C (59°F)
    2.45 to 2.88 kΩ
    J38-1 - J38-2
    20°C (68°F)
    1.95 to 2.30 kΩ
    J38-1 - J38-2
    15°C (77°F)
    1.60 to 1.80 kΩ
    J38-1 - J38-2
    30°C (86°F)
    1.28 to 1.47 kΩ
    J38-1 - J38-2
    35°C (95°F)
    1.00 to 1.22 kΩ
    J38-1 - J38-2
    40°C (104°F)
    0.80 to 1.00 kΩ
    J38-1 - J38-2
    45°C (113°F)
    0.65 to 0.85 kΩ
    J38-1 - J38-2
    50°C (122°F)
    0.50 to 0.70 kΩ
    J38-1 - J38-2
    55°C (131°F)
    0.44 to 0.60 kΩ
    J38-1 - J38-2
    60°C (140°F)
    0.36 to 0.50 kΩ
    NOTICE:
    1. Hold the sensor only by its connector. Touching the sensor may change the resistance value.
    2. 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 room temperature sensor.