Solar Radiation Sensor Inspection

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the following parts:
1. Center speaker grille (See SPEAKER GRILLE REMOVAL/INSTALLATION .)
2. Front center speaker (See FRONT CENTER SPEAKER REMOVAL/INSTALLATION .)
Remove the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION .)
Shine a fluorescent light or expose the solar radiation sensor to natural sunlight.
Connect the positive (+) lead to terminal A and negative (-) lead to terminals B, C of the solar radiation sensor, and verify that the voltage value is output.

Fig 1: Connecting Battery To Solar Radiation Sensor
Courtesy of MAZDA MOTORS CORP.
- If the voltage is0 V, replace the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION .)