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R58 Electrical Problems

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Old Mar 12, 2026 | 07:32 PM
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sully325's Avatar
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Default R58 Electrical Problems

Hi everyone,
Ok, so I have an 2012 Cooper Coupe R58 with close to 200k mi on the chassis. I recently changed the brakes on all 4 corners and about a week later I am getting DSC failed warning on the display. When checked with a Foxwell scanner, I'm getting multiple (9) DSC codes including yaw sensor fault, longitudinal accelerator sensor fault, multiple DSC "no DSC message", and multiple (4) CAS codes as well, CAS Control Unit fault, CAS 1,2,3 terminal 15 outlet faults ... The car has refused to start a couple of times when start button is iniitally pushed but then will start if pushed again - The battery is new and coded to the car, the key fob is new and was coded by a dealer, the charging system is showing 12.3v cold and goes immediately to 14.3v after start, the ground cables are both intact and I have cleaned the contact points ensuring they are bare metal. The FRM was rebuilt and recoded about 6 mos ago. There was no water intrusion or corrosion in the footwell or floor at the time. Has anyone experienced all of these problems concurrently? ANY ideas of where to go from here will be appreciated. I gotta get this fixed, it's driving me nuts!
 
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