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      08-11-2024, 03:32 AM   #1
JimmyV12
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Drives: BMW 320 F30 / BMW 335i E90
Join Date: Aug 2023
Location: YUCAIPA

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A9AC CODE intermittent voltage spikes

So far i replaced voltage regulator and that didnt work

so i got a loaner battery from interstate while they test mine (tested good) that didnt work

I just repalced the alternator and im still getting this code and the symptoms i have are annoying

Radio screen flashes and music pauses then i get dsc malfunction for this all last between 1-3 seconds per episode

Car fires right up and drives smooth i check my battery cable to make sure its secure and its good i also checked the battery strap and its not torn.

If anyone has any idea what could be happening please leave a comment thank you for your help.
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