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Home >> Mazda >> 2020 >> CX-3 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Body Control Module >> DTC B1A69-86: Error Signal Received From Auto Light Sensor/Humidity Sensor/Rain Sensor (BCM) >> Notes
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DTC B1A69-86: Error Signal Received From Auto Light Sensor/Humidity Sensor/Rain Sensor (BCM): Notes

DTC B1A69:86 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

Description Error signal received from auto light sensor/humidity sensor/rain sensor
Detection condition
  • BCM receives the error signals from the auto light sensor/humidity sensor/rain sensor for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • Auto light sensor/humidity sensor/rain sensor malfunction
  • BCM malfunction
System wiring diagram Not applicable