Can s90 seats be fitted to S60

[IMAY2023]

For anybody wondering what the hell this connector does.
It's used when the car is powerless and you need to move the seat forward/back. So no features for daily use  
 

Also i know @power6 was messing with the rear foot lights in a post here or Swedespeed. If i have lights that came originally with my chairs all wired up, do i still have to pull wires from front foot wells or can i activate these lights somehow?

Well, I cannot tell. I have 2019 S60 with high level lights but did not have any lights on the rear seats. The 2018 S90 rear seats I got, have trim lights in the middle (sides of the arm rest when it's fold down).  According to wiring diagram, it gets the positive from the rear right door ambient lights controlled by the door module. I said what the hack and wired it to the  ambient light under the glove box instead and it works perfectly.  It's just one positive wire on pin2 (instead of the headrest fold).  I don't know what model and year you have but according to my experience with Volvo so far, nothing is prewired completely with some exceptions like alarm sensor, alarm siren. Depending on the year and model, even the freaking rear seat climate control is not prewired completely or the shifting paddles. (you have the wires in the center console but there is no wiring from the center console harness connector to SWN, IHU or FUSE BOX for example).   That's why I cannot tell if your seats are wired already or not. They might have it on seat side but on the next harness you might not have.

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imay2023.  243. POWER ADJUSTABLE SIDE SUPPORT is set to - Power adjustable side support. i have no DTCs for the seats. both seats came from a volvo s90 2023 that volvo them self had owned, only 25000 km. the car was fully equiped if that has anything to offer information wise. 


it must be some config thats is wrong, i can't think it would be a softwer isue due to the driver seat graphic is as it shuld. is there any other setting that could interfere with this.

what i have change when adding the new seats

179 FRONT SEAT VENTILATION Enabled driver and passenger
180 HEATED FRONT SEATS Enabled 
239 MASSAGE FRONT SEAT Enabled 
240 LUMBAR SUPPORT 4 ways 
241 CUSHION EXTENSION Enabled driver and passenger 
243 POWER ADJUSTABLE SIDE SUPPORT 
462 HEATING MAT VARIANTS Enabled Cushion and backrest
i have also  244 set to 2 (remote controll of passenger seat)

I have the same exact config. Try this. 
 1)  241 CUSHION EXTENSION  > Disable this for both sides. 
 2)  After config is done, from the ECU tools do hard reset to ECUs ( IHU, L&R seat controllers). 
3) Disconnect and lock the car for 10 to 15 minutes at least. 
4) Go back reconfigure  " 241 CUSHION EXTENSION Enabled driver and passenger " 
5) After config is done, from the ECU tools do hard reset to ECUs ( IHU, L&R seat controllers). 
6)  Disconnect and lock the car for 10 to 15 minutes at least. 

Hope this helps.