Sunlight Sensor Test

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NOTE: Before testing the sensor, check for climate control DTCs (see GENERAL TROUBLESHOOTING INFORMATION ).

Pull out the sunlight sensor (A) from the dashboard.

Fig 1: Identifying Sunlight Sensor And Dashboard
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II). Measure the voltage between the terminals with the (+) probe on the No. 1 terminal and the (-) probe on the No. 2 terminal with the connector connected.
NOTE: The voltage readings will not change under the light of a flashlight or a fluorescent lamp.

Voltage should be:
- 3.6-3.7 V or more with the sensor out of direct sunlight.
- 3.3-3.5 V or less with the sensor in direct sunlight.
If the voltage is not as specified, replace the sunlight sensor (see SUNLIGHT SENSOR REPLACEMENT ).