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BMW 5-Series (G30) Forum DIY Discussions / Guides / Instructions Pinout or wiring diagram for Comfort Seats

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      05-14-2025, 02:16 PM   #23
Hermman
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I'll try to read all the posts and will write back.
Did you code the massage function?

Write in private messages, I'm not always on here.
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      05-20-2025, 04:34 AM   #24
Pabloaguas2
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Got it hooked up and working with the g30 seats. Not sure what the extra small red wire or extra small brown wire is for. The one red wire that is required for this to work actually powers the seat switch(s).

I havnt yet checked the heat yet but the memory function seems to be working on the drivers side but not the passengers side. On the passenger side, once pressed, memory button never stops flashing. Maybe has to do with a faulty switch.

The switch on the passenger side might be faulty… the middle knob that controls up/down and forward backward and tilt is all reversed. But the other knobs are fine. Maybe it is a bad switch or a bad controller. Might be related to the memory not working on that seat.

Will post an update if I can figure it out.
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      05-22-2025, 08:37 AM   #25
bmwG12seats
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G12 Seat Can BUS help (G11 on seat module underneath)

Hi guys, did anyone ever come up with a DBC file for the seat control on the G11/G12 CAN bus for retro fitting? Or does anyone have a recording of the CAN bus during operation of seat functions? G12 7 series Seat (says G11 on seat module underneath). Any help would be greatly appreciated. They won't function at all at the moment.
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      05-22-2025, 08:52 AM   #26
bmwG12seats
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Quote:
Originally Posted by DigitalFusion View Post
I really hope this helps someone else in the future, who was like me and could not find anything at all for info on this thing.

What worked for me was NOT using the resistor (even though I have a G12 seat, and the wiring instruction says to use one), as well as connecting pin 1 (top left in my picture) to +12v as well like you do when jumping the seat to control it for ~10 seconds before it shuts off.

I still have the issue of the forward/back adjustment working for only 1 second at a time. From what I have read this is due to the seat thinking the car is actually running, and is a safety feature and will not do this if the car is not running withe +12 switched on?

I will just keep updating this thread with my findings to help future searchers!

Doesn't work #1 image, Does Work #2 image. After you buy from them the sales line goes dark, and they will only reply to you via telegram during "10:00-19:00" Ukrainian business hours.

I get it. But at the same time not even allowing support questions via email to answer the next day, and not responding to questions sent to them during those hours is pretty frustrating.
Hi There, please could you confirm if the seat movement works without a can signal? i.e. with only 12v +- and Acc (small red cable)
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      05-22-2025, 08:54 AM   #27
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Quote:
Originally Posted by Pabloaguas2 View Post
Got it hooked up and working with the g30 seats. Not sure what the extra small red wire or extra small brown wire is for. The one red wire that is required for this to work actually powers the seat switch(s).

I havnt yet checked the heat yet but the memory function seems to be working on the drivers side but not the passengers side. On the passenger side, once pressed, memory button never stops flashing. Maybe has to do with a faulty switch.

The switch on the passenger side might be faulty… the middle knob that controls up/down and forward backward and tilt is all reversed. But the other knobs are fine. Maybe it is a bad switch or a bad controller. Might be related to the memory not working on that seat.

Will post an update if I can figure it out.
Hi Pabloaguas2, did you manage to get the CAN DBC for your seats? or are you using an aftermarket controller?
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