Solar Radiation Sensor Inspection [Full-Auto Air Conditioner]

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Shine a filament light or expose the solar radiation sensor to natural sunlight.
Connect the positive (+) lead to terminal B, C and negative (-) lead to terminal A of the solar radiation, and verify that the voltage value is output.
- If the voltage is 0 V , replace the solar radiation sensor.
  
  Fig 1: Measuring Voltage Of Solar Radiation Sensor
  Courtesy of MAZDA MOTORS CORP.