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Evaporator Temperature Sensor Test

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the evaporator core and the evaporator temperature sensor (see EVAPORATOR CORE REPLACEMENT  ).
  2. Dip the sensor in ice water, and measure the resistance between its terminals.
    Fig 1: Measuring Resistance Between Evaporator Temperature Sensor Terminals
    G06431379Courtesy 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: Evaporator Temperature Sensor Graph
    G06431380Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. If the resistance is not as specified, replace the evaporator temperature sensor (see EVAPORATOR CORE REPLACEMENT  ).
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