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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Fault Code Help. A0B0



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      12-28-2015, 01:29 PM   #1
Broken_Gearbox
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Unhappy Fault Code Help. A0B0

A0B0 - brake light signal implausible.

All brake lights working fine.

Any help appreciated.
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      12-28-2015, 01:31 PM   #2
Aragorn30d
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could be a faulty brake light switch?

Many cars have a "dual" switch, where one leg runs the lights and the other feeds the ECU's. If the ECU part were to fail, you'd get a fault code, but the lights would still work.
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