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BMW 3-Series (E90 E92) Forum > BIMMERPOST Universal Forums > Sim Racing > 2009 E93 Seat Wiring for Sim Use



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      01-11-2026, 02:13 PM   #1
Jk2025USA
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2009 E93 Seat Wiring for Sim Use

I have a 2009 BMW E93 passenger seat that I am going to use for a sim racing rig I am building. I don’t know what any of the wires do on the underside of the seat and I can’t find anyone online who knows what the color codes mean. I need to know what wires I can plug into a power supply that will make the motors work with the switches. Can anyone help me identify what each wire does? I have attached a photo of the wiring under the seat.
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      02-07-2026, 09:13 PM   #2
munizfire
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I just wired a junkyard Volvo S60 seat for power controls.
I got the official Volvo wiring diagrams for the year/model I took the seat from, scrolled until I found the seat connector pin-outs, and used that as a reference on what to wire. Obviously, the screenshot I'm attaching is for Volvo and NOT BMW, but it can give you an idea of what to look for.
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The wires highlighted in green were the ones I needed to power in order to make the power seat functions work.



WARNING: Be EXTRA careful when providing power, because if you accidentally power the airbag (and/or related systems) you seat airbag can (and probably will) go off.
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