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In-car Temperature Sensor Test

  1. Remove the in-car temperature sensor (see IN-CAR TEMPERATURE SENSOR REPLACEMENT ).
  2. Heat and cool the sensor by holding it in front of the dashboard center vent.
    • Measure the resistance with the system set to Max Cool.
    • Measure the resistance with the system set to Max Hot.
  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: Identifying Resistance Between Terminals Of In-Car Temperature Sensor Connector
    G05526407Courtesy 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 REPLACEMENT ).
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