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Vent Air Temperature Sensor Test

NOTE: Before testing the sensor, check for climate control DTCs (see HOW TO CHECK FOR DTCS WITH THE HDS  ).
  1. Remove the driver's vent air temperature sensor (see DRIVER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ) or the passenger's vent air temperature sensor (see DRIVER'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 terminals No. 1 and No. 2 of the vent air temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Checking Vent Air Temperature Sensor Resistance
    G07354731Courtesy 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 the passenger's vent air temperature sensor (see DRIVER'S VENT AIR TEMPERATURE SENSOR REPLACEMENT  ).
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