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Front Evaporator Temperature Sensor Test

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front evaporator temperature sensor (see FRONT EVAPORATOR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Dip the sensor in ice water, and measure the resistance between its terminals.
    Fig 1: Measuring Resistance Between Front Evaporator Temperature Sensor Terminals
    G08057978Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Pour warm water on the sensor, and measure the resistance.
  4. Compare the resistance readings with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 2: Resistance And Temperature Graph
    G08057979Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If the resistance is not as specified, replace the front evaporator temperature sensor (see FRONT EVAPORATOR TEMPERATURE SENSOR REPLACEMENT  ).
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