Circuit board

Thread Starter

Yoshi3

Joined Jul 15, 2021
48
I'm retrofitting some bmw e92 2 door electric seats into my morris minor, I've got almost everything working except the Rocker switch which enables entry into the rear by sliding the seat a little quicker than the seat adjuster button at the bottom of the seat. Theres a module under the seat that controls thinhs. I believe that when the seats are in they're original vehicle this button only works when the door is open. I believe default will be door shut. Do you think this is something that could be over ridden on the circuit board? Many thanks
 

LowQCab

Joined Nov 6, 2012
5,101
There's no way to tell,
You've supplied no Pictures, and no Schematic.
It's also not very clear what it is that You want to accomplish.

If there's more than just a single-Hot-Wire and a single-Ground-Wire
running between the Car-Body and the Seat-Module,
then it is very likely that all functions are ( or were ) controlled by one of the Body-Computers,
and in that case,
You will need to trash the original Module, and build your own Control-Circuitry.
.
.
.
 

Thread Starter

Yoshi3

Joined Jul 15, 2021
48
There's no way to tell,
You've supplied no Pictures, and no Schematic.
It's also not very clear what it is that You want to accomplish.

If there's more than just a single-Hot-Wire and a single-Ground-Wire
running between the Car-Body and the Seat-Module,
then it is very likely that all functions are ( or were ) controlled by one of the Body-Computers,
and in that case,
You will need to trash the original Module, and build your own Control-Circuitry.
.
.
.
Sorry I didn't supply pics as was asking if it's possible on the board. I'm aiming to get the last Rocker switch working that moves the seat forward. Thanks
 

LowQCab

Joined Nov 6, 2012
5,101
That is one of the "Body-Computers", it probably controls much more than just the Seats.

If You have to ask the question, then the answer is no,
You can't do anything at all with that Computer.
Even if You were a total Genius and knew exactly what You were doing,
You probably couldn't get it to do anything useful.

You need to start thinking about building your own Control-Box,
it can be done with simple Relays, or more complex Electronic-Switching.

Knowing what you've got, and what each part needs to operate, is the first step.
.
.
.
 

Thread Starter

Yoshi3

Joined Jul 15, 2021
48
Screenshot_20221006-154926_Chrome.jpgthis is the main plug that connects to the car, I've removed the plugs for air bags & seatbelts 14 -19. Connected 12v+ to no.4 & no.7. Earth to no.8 & no.13, this has given me seat adjustment & side bolsters but everything only works for about 30 secs then cuts out. Disconnecting the 12v then reconnecting after a few minutes activates them again. I believe this is due to the kcan no.s 2 & 3, I'm going to use a 5v trigger cycle timer Delay to trick that into working. Screenshot_20221006-154926_Chrome.jpg
 
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