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Home >> Acura >> 2004 >> MDX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Climate Control System) >> Humidity/In-car Temperature Sensor Test >> In-car Temperature Sensor Test
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In-car Temperature Sensor Test

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the humidity/in-car temperature sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Connect the humidity/in-car temperature sensor 4P connector.
  3. Test the humidity/in-car temperature sensor while 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.
  4. Compare the resistance reading between the No. 4 and No. 3 terminals of the humidity/in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Resistance To Temperature Graph
    G05487687Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If the resistance is not as specified, replace the humidity/in-car temperature sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT  ).
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