Evaporator Temperature Sensor Test

WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.

Dip the sensor in ice water, and measure the resistance between its terminals.

Fig 1: Checking 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 Fig 2; the resistance should be within the specifications.

Fig 2: Evaporator Temperature Sensor Terminals Resistance Graph
Courtesy of AMERICAN HONDA MOTOR CO., INC.