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ROOM TEMPERATURE SENSOR (for Front) ON-VEHICLE INSPECTION

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    INSPECT ROOM HUMIDITY SENSOR


    1. A01CGE2E06

      Disconnect the room humidity sensor connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      4 (S5) - 2 (-) Engine switch on (IG) 4.5 to 5.5 V

      If the voltage is not as specified, repair or replace the wire harness or connector.

    3. A01CDE0E03

      Reconnect the room humidity sensor connector.

    4. Turn the engine switch on (IG).

    5. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 10%

      		 0.7 to 1.08 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 20%

      		 0.72 to 1.57 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 30%

      		 1.13 to 1.95 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 40%

      		 1.61 to 2.24 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 50%

      		 1.99 to 2.46 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 60%

      		 2.26 to 2.66 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 70%

      		 2.48 to 2.85 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 80%

      		 2.68 to 3.04 V
      3 (RH) - 2 (-)

      at 25°C (77°F)

      Humidity 90%

      		 2.87 to 3.05 V
      Note:

      • Do not touch the room humidity sensor because it may be affected by body temperature and may not work properly.

      • Hold the sensor only by its connector.

      • The output voltage at the ambient temperature 25°C (77°F) is shown above.

      Tip:

      As the humidity increases, the voltage increases (see the graph).

      If the voltage is not as specified, replace the room humidity sensor.