Whine Noise from Speakers when Listening to AM Radio with the Blower Motor On – 2014-2015 Mazda3

2014-2015 MAZDA3 (WITHOUT MAZDA CONNECT) – WHINING NOISE FROM SPEAKERS WHEN LISTENING TO AM RADIO WITH BLOWER MOTOR ON

APPLICABLE MODEL(S)/VINS

2014-15 Mazda3 vehicles (Japan built without MAZDA CONNECT) with VINs lower than JM1BM****** 262282 (produced before March 1, 2015)

2014-15 Mazda3 vehicles (Mexico built without MAZDA CONNECT) with VINs lower than 3MZBM****** 182009 (produced before January 1, 2015)

 

Whine noise from the speakers when listening to the AM radio with the blower motor on.

 

This concern may be caused by an internal failure of the audio unit. To correct the problem, the internal circuit of the audio unit has been changed.

 

REPAIR PROCEDURE

  1. Remove the audio unit and replace with a modified one according to the instructions on MS3 online or the Workshop Manual (section 09-20).

 

PART(S) INFORMATION

Part Number Description Qty. Notes
BHN9-66-9R0B Audio Set 1 Japan built
BJS7-66-9R0D Audio Set 1 Mexico built

 

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