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Outside 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 outside air temperature sensor (see IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Dip the sensor in ice water, and measure the resistance. Then pour warm water on the sensor, and check for a change in resistance.
  3. Compare the resistance reading between terminals No. 1 and No. 2 of the outside air temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Checking Outside Air Temperature Sensor Resistance
    G07354727Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the resistance is not as specified, replace the outside air temperature sensor (see IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
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