DTC B10AD-09: Humidity Sensor/Solar Radiation Sensor/Auto Light Sensor/Rain Sensor Malfunction [Body Control Module (BCM)]: Outline

DTC B10AD:09 - BODY CONTROL MODULE (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Humidity sensor/solar radiation sensor/auto light sensor/rain sensor malfunction
Detection condition	The body control module (BCM) detects the humidity sensor/solar radiation sensor/auto light sensor/rain sensor malfunction.
Fail-safe	If the light switch is in the AUTO position, the TNS (parking lights) and headlights LO is turned on.
Possible cause	Humidity sensor/solar radiation sensor/auto light sensor/rain sensor connector or terminal malfunction Body control module (BCM) connector or terminal malfunction Short to ground in humidity sensor/solar radiation sensor/auto light sensor/rain sensor LIN communication line Short to power supply in humidity sensor/solar radiation sensor/auto light sensor/rain sensor LIN communication line Open circuit in humidity sensor/solar radiation sensor/auto light sensor/rain sensor LIN communication line Humidity sensor/solar radiation sensor/auto light sensor/rain sensor malfunction Body control module (BCM) malfunction
Courtesy of MAZDA MOTORS CORP.