With Bose®: Outline

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DTC B1A08:13 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE - WITH BOSE®

System malfunction location	Front center speaker audio output circuit malfunction
Detection condition	The audio amplifier detects an open circuit in the front center speaker audio output circuit for 30 s.
Fail-safe	Not applicable
Possible cause	Front center speaker connector or terminal malfunction Audio amplifier connector or terminal malfunction Front center speaker malfunction Open circuit in front center speaker audio output circuit Audio amplifier malfunction
Courtesy of MAZDA MOTORS CORP.