Without Bose®: Outline

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DTC B1A03:2B (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE - WITHOUT BOSE®

System malfunction location	Tweeter (LH) audio output circuit malfunction
Detection condition	The audio amplifier detects a short circuit between the tweeter (LH) audio output circuits for 30 s.
Fail-safe	Not applicable
Possible cause	Tweeter (LH) connector or terminal malfunction Audio amplifier connector or terminal malfunction Tweeter (LH) malfunction Short circuit between tweeter (LH) audio output circuits Audio amplifier malfunction
Courtesy of MAZDA MOTORS CORP.