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      07-23-2025, 04:58 PM   #13
whenasked
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Drives: E90/G12 740xi
Join Date: Sep 2009
Location: US

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This was the diagnosis: Cause: BATTERY CHARGER SHORT TEST FOUND FAULT CODE. B7F480 AUDIOAMPLIFIER
(BOOSTER): NO CONNECTION. COMPLETED TEST PLAN ANDFOUND THE AMP IS NO LONGER OUT
PUTTING AS MUCH POWER AS ITSHOULD BE. .
Correction: REPLACED AND PROGRAMMED AMPLIFIER TO VEHICLE
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