Evaporator Temperature Sensor Test

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Remove the evaporator temperature sensor (see EVAPORATOR TEMPERATURE SENSOR TEST ).
Dip the sensor in ice water, and measure the resistance between its terminals.

Fig 1: Measuring Resistance Between Evaporator Temperature Sensor Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Then pour warm water on the sensor, and check for a change in resistance.
Compare the resistance readings with the specifications shown in the graph Fig 2; the resistance should be within the specifications.

Fig 2: Resistance To Temperature Graph
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the resistance is not as specified, replace the evaporator temperature sensor (see EVAPORATOR TEMPERATURE SENSOR TEST ).