Evaporator Temperature Sensor Test

NOTE: Before testing the sensor, check for climate control DTCs (see HOW TO CHECK FOR DTCS WITH THE HDS ).

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

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

Fig 2: Resistance Readings Graph
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the resistance is not as specified, replace the evaporator temperature sensor (see SUNLIGHT SENSOR REPLACEMENT ).