09-09-2024, 12:59 AM
(09-08-2024, 03:48 PM)oleelstad Wrote: Hello.
I recently bought a few front seats from a Volvo S90 2018 model thinking I would put these in my patrol. Having worked with seats from earlier cars etc I thought this would be straight forward. However that is not the case.
Added a picture of the seats in mind.
Is there a way to get these seats to be standalone? I can run the motors etc for up, down, forward and backward by connecting straight too the motors. But using the buttons seems impossible. I have tried connecting +12V, GND and a signal to the blue/white cable which I've read somewhere is the "activate signal", that did not work however.
As far as I am aware there is no memory function on the passenger seat, but this could be a option on the main seats. I do not need these functions.
I am thinking that the controllers are integrated in the seats but maybe they need a canbus signal to activate? Does anyone know?
The VOLVO seats have seat controller units under them that are CAN bus units. Pin 29 is Can Low and Pin 30 CanH. It has two power inputs. (constant and battery saver. ) The buttons on the side are LIN slaves connected to the seat controller uses the same battery saver positive input.
If you wire the seats correctly to power and ground, they should work. CAN bis units do not need CAN signal to turn on unless a standby "sleep" command is sent from the CEM. As soon as you power them up they should work. here is the link for the wiring. The page you need is "front seat comfort" https://forums.spaycetech.com/attachment.php?aid=335 If those seats are massage, heated and cooled, those three options will not work because the heating and cooled unit receives LIN massage from CCM. Massage option sends CAN signal to CEM and CEM to center display to bring up the menu on scree. You can though feed the heating and vents with the same power source and switch.