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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 OUTSIDE AIR 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 in illustration below; the resistance should be within the specifications.
    Fig 1: Comparing Resistance Reading Between Terminals No. 1 And No. 2 Of Outside Air Temperature Sensor
    G08071074Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Outside Air Temperature Sensor Graph
    G08071075Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the resistance is not as specified, replace the outside air temperature sensor (see OUTSIDE AIR TEMPERATURE SENSOR REPLACEMENT  ).
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