DTC B1A09-12: Front Door Speaker (LH) Audio Output Circuit Malfunction: Outline

DTC B1A09-12: (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Front door speaker (LH) audio output circuit malfunction
Detection condition	The audio amplifier detects a short to power supply in the front door speaker (LH) audio output circuit for 30 s.
Fail-safe	Not applicable
Possible cause	Front door speaker (LH) connector or terminal malfunction Audio amplifier connector or terminal malfunction Front door speaker (LH) malfunction Short to power supply in front door speaker (LH) audio output circuit Audio amplifier malfunction
Courtesy of MAZDA MOTORS CORP.