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7 Μαρ 2020 · I currently have the DSC under voltage fault. It throws this one when the battery voltage drops below 11 volts. Mine drops to 10.5v on starting suggesting I need a new battery. Not rushing out to get one just now - still starting the car fine.
I'm enjoying my new X4 M40i and did a diagnostic scan with Carly (very nice app), it appeared the code 4809AB that means DSC Under-voltage power supply Global. But nothing shown in the dashboard and the car DSC seams to work correctly.
In this video I show a step by step guide on fixing the dynamic stability control DSC fault (dynamic traction control) DTC where it has a permanent warning l...
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We do get a code 4809AB DSC Under-voltage power supply Global with no dash warning lights; not sure if that's related.
Enter a BMW fault code (P or hex), complete the captcha, and click "Search". P-Codes will start with a P and are usually generated by generic scanners. Example: P1055. Hex Codes are typically given by more advanced scanners. Examples: 180101 or 1B9308 or 30FF.
After picking up the car I have had lights for ABS and Traction Control. When I plugged in my code reader I see codes P127E and then "480964 DEX under voltage at Control Unit" as well as 4809AB "DSC undervoltage in vehicle".
