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Vent Air Temperature Sensor Test

  1. Remove the driver's vent air temperature sensor (see DRIVER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ). or passenger's vent air temperature sensor (see PASSENGER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Check for a change in resistance by heating the sensor with a hair dryer or cooling the sensor in a cool cup of water.
  3. Compare the resistance reading between the No. 1 and No. 2 terminals of the vent air temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Resistance And Temperature Graph
    G05496614Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the resistance is not as specified, replace the driver's vent air temperature sensor (see DRIVER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ) or passenger's vent air temperature sensor (see PASSENGER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ).
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