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In-Car Temperature Sensor Test

  1. Remove the in-car temperature sensor (see IN-CAR TEMPERATURE SENSOR TEST  ).
  2. Check for a change in resistance by heating the sensor with a hair drier 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 in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Removing In-Car Temperature Sensor
    G03661905Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the resistance is not as specified, replace the in-car temperature sensor (see IN-CAR TEMPERATURE SENSOR TEST  ).