Solar Radiation Sensor Inspection (Auto A/C)

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
Remove the following parts:
1. Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
2. Decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION .)
3. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .)
4. Side wall (passenger-side) (See SIDE WALL REMOVAL/INSTALLATION .)
5. Front heat duct (passenger-side) (See FRONT HEAT DUCT REMOVAL/INSTALLATION .)
6. Front scuff plate (passenger-side) (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
7. Front side trim (passenger-side) (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
8. Lower panel (passenger-side) (See LOWER PANEL REMOVAL/INSTALLATION .)
9. Blower unit (See BLOWER UNIT REMOVAL/INSTALLATION .)
Remove the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION (AUTO A/C) .)
Shine a fluorescent light or expose the solar radiation sensor to natural sunlight.
Connect the positive (+) lead to terminals B, C and negative (-) lead to terminal A of the solar radiation sensor, and verify that the voltage value is output.

Fig 1: Inspecting Solar Radiation Sensor
Courtesy of MAZDA MOTORS CORP.
- If the voltage is 0 V, replace the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION (AUTO A/C) .)