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Home >> Mazda >> 2021 >> CX-3 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (On-Board Diagnostic - Body Control Module) >> DTC B10AD-49: Auto Light Sensor/Rain Sensor Internal Malfunction >> Notes
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DTC B10AD-49: Auto Light Sensor/Rain Sensor Internal Malfunction: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
Description  Auto light sensor/rain sensor internal malfunction
Detection condition 
  • The BCM received auto light sensor/rain sensor error signals from the auto light sensor/rain sensor 10 times continuously  with the ignition switched ON (engine off or on).
Fail-safe  Auto light system 
  • Continue the controls prior to the auto light malfunction detection.
Auto wiper system 
  • Continue the controls prior to the windshield wiper malfunction detection.
Possible cause 
  • Auto light sensor/rain sensor malfunction
  • BCM malfunction
System wiring diagram  Not applicable