BMW M3 Forum (E90 E92) - View Single Post - Paddle shifters not working w/ fault code

nickauger · 05-07-2026, 01:40 PM

I would like to know how the 5A73 is trigger. From what i know each paddle shifter will complete continuity to ground when activated. I don't get how the TCU know theres a problem when paddle shifter are not activated.

05-07-2026, 01:40 PM	#2
nickauger Private 47 Rep 92 Posts Drives: m3 e90 Join Date: Aug 2018 Location: Quebec iTrader: (1)	I would like to know how the 5A73 is trigger. From what i know each paddle shifter will complete continuity to ground when activated. I don't get how the TCU know theres a problem when paddle shifter are not activated.
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