Sunlight Sensor Test

WARNING: This page is about a different car, the 2011 Honda CR-V, 2010 Honda CR-V, 2009 Honda CR-V, 2008 Honda CR-V, and 2007 Honda CR-V. However, it is still accessible from the selected car via links, so may be relevant.

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

Remove the sunlight sensor from the dashboard (see SUNLIGHT SENSOR TEST ).
Connect the sunlight sensor 2P connector.
Turn the ignition switch to ON (II). Measure the voltage between the terminals with the (+) probe on the terminal No. 2 and the (-) probe on the terminal No. 1 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.
  
  Fig 1: Measuring Voltage Between Terminals 1 And 2 Of Sunlight Sensor
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the voltage is not as specified, replace the sunlight sensor (see SUNLIGHT SENSOR TEST ).