Issue: Blown Stock Subwoofer.
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What: The stock subwoofer blows after normal usage.
Why: The stock sub suffers from a weak voice coil. After normal use of the sub, the voice coil will simply detach itself from the cone and render the sub useless.
This may not be an immediate detachment and thusly your subwoofer may kick in and out at random times but it will eventually die completely.
How To Fix: Return to the dealership. Most dealerships have given the customers a completely new new amp rack including amp, the plastic deck and subwoofer. I haven't heard of a dealership just replacing the subwoofer by itself. Keep in mind this is a great time to talk to them about your amp rack if it rattles.
TSB/M-Tip:
Code:
MAZDASPEED PROTEGE - SUBWOOFER INOP Applicable Models Model Starting S/N Ending S/N 2003 PROTEGE 00000000 ZZZZZZZZ Symptoms and ConditionsCustomer may experience intermittent or no sound from Kenwood rear tray subwoofer. When you encounter a customer with this concern repair vehicle according to the following repair procedures.Repair Procedure1. Verify customer concern.2. Confirm that the NF (Non Fading {rear sub-woofer audio signal}) has not been turned off accidentally by the customer. This can be checked with the audio turned on and pressing the AM button for approximately 2 seconds, this will cause the display screen to momentarily change indicating "NF", ON or off.3. Confirm power to rear subwoofer amp by verifying orange LED illuminates when the audio unit is turned on.If no faults are found in the above steps, exchange the subwoofer tray assembly by contacting KENWOOD at (XXX) XXX-8740 and faxing the audio exchange order form to FAX No. (XXX) XXX-8749.Copyright Mazda North American Operations
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