Can s90 seats be fitted to S60

[Helpful]

Good afternoon. My car is a 2023 XC60 Core. Simple but fully electric seats with heating and memory on the driver's seat. (without a leg extension). I want to install seats with all the options. I found a set of seats from a car from England (right-hand drive). Can I install them in my car? What to do with the passenger presence sensor that will be on the driver's side? Is it possible to move this sensor? The control units on both "new" seats from England are the same 31652047.

My car is also from the USA. Do I understand correctly that I will still need to rearrange the airbags from my native seats to the donor seats?

[superiorpyre]

Here is an update!  I did it Folks!
I retrofitted 2018 S90 Inscription Front and Back Seats to my 2019 S60 T5.  The seats I got are Heated, Ventilated both front and back. In addition, front seats have side support and massage.  (passenger & driver) 
My original front seats has only heated option and back seats are just regular.   
Font Seats:
The seats fits directly, no need to modify anything. 
Wiring though depends on the original seats.  
Factory heated > Heated +  Ventilated  : No need to wire anything. 
Factory not heated > Heated or ( Heated + Ventilated) : Two individual wiring is needed.  (positive and LIN to CCM ) per seat. 
Factory not heated >   Heated +  Ventilated  + Side support + Massage  Three wires is needed.   (positive and LIN to CCM ) per seat and 1 positive (shared fuse) for both seats. 
Since my seats were already heated, I had to get 1 positive line from fuse box for both seats. 

Then just change the config via Orbit. 
Note: Massage seats may not work at first right after config change. Just reset all the ECUs after config is done then close and lock the car. Come back later it should work. 
 IMPORTANT: Just make sure the seats you are getting do not have blown airbags or airbags removed.  Otherwise, you don't have an issue.   


Back Seats:

PAIN IN THE BUD but doable though if you are determined and stubborn like me  :-) !!! 
IMPORTANT: S90 rear seats are little bit wider on backrest sides. 

NOTE 1:  Ventilated rear seats do not have foldable headrests.  
NOTE 2:  If you do not have 4 zone climate control, rear ventilated seats will not work because it requires digital control panel with fan control and the control panel is connected to the IHU LIN. (same LIN as the ignition switch). IHU will not turn on the panel unless the car is set to 4 zone climate control. 
NOTE 3: If you do not have 4 ZONE from factory, DO NOT change it. HVAC will not work because it's missing temperature sensor. At first you may think it's working but after CCM resets completely, it will not blow any air from any vent regardless what you choose. 
NOTE 4: CCM is located on the AC unit behind the dashboard, it's impossible to wire the missing temp sensor without pulling apart the the whole dashboard. (I gave up) 

If you already have 4 zone but without heated and ventilated,  you just need to replace the control panel or you can leave it as is and control the rear seat heat and vent from the IHU. (rear climate controls)! But you'll have some wiring to do.  

If you do not have 4 zones but have heated seats already, replace and plug & play but rear ventilation will not work because there is no button to start them. 
If you do not have 4 zones and do not have heated rear seats like me.  You will need to wire the heated seat and again work around the VOLVO's cheapness for saving 2 wires from the central control harness to main harness. 

Now the wiring, it not complicated but requires works. 
By the way, I am not affiliating anything, just sharing the info after long time of search so it will be easier for the folks crazy enough like me to attempt this :-)   
You will need...
2 x https://www.amazon.com/dp/B089KTJJHF?psc...ct_details   > This is for the heater module connected to the seat. 1 for each side. 
2x https://www.amazon.com/dp/B08547CNDY?psc...ct_details   > This is for the backrest connector. 
https://www.amazon.com/dp/B08QJHXRN6?psc...ct_details  > Fuse tabs 
The connectors have their own wires no need to rewire, they can be just joined with the supplied joiners. 
For Positive heated seats, use 16 awg wire > Goes to the cushion connector. "Yellow"   pin 1 
For LIN connection I used 18 but you can use small as 22.  >  Goes to the cushion connector. "Green"   pin 2 to the front seat heating module.  RL to FL and RR to RF. 
For Ground Use 18. >  pin 3 on the  cushion connector and pin 5 on the backrest connector.  Each pin must be grounded individually. you can use the same ground point. 
PIN 4 on the cushion connector goes to PIN 1 on the backrest. 
PIN 5 (ventilated)  on the cushion connector goes to PIN 2 on the backrest. (replaces the headrest release switch pin)  If you do not have the ventilated seats, you do not need that.  
PIN 3 on the backrest connector is for the lights of the center arm rest . I get it from the light under the glow box.  

For the folks who do not have the heated rear seats and do not have 4 zone climate like me. 
There is a green connector inside back of the center console. Just pull the plastic cover and you'll see it there. 
You need to buy 31346786 and connect it to the green connector. You can buy the trim peace too or just make whole for the buttons on the existing trim (that you pulled out ). Not done yet. :-) Not so easy ! 

The green connector is already grounded but we are missing the positive and the LIN. This is where VOLVO got very cheap. 
For positive, just get it from the 12v socket under it. Easy enough. 

For the LIN. 
Pull out the cover of the center console at the passenger side. You will see grey connector. 
Look for the white and light green wire. PIN 23  and PIN 11. Just put a jumper wire from pin 23 to 11. 



Well done ! you have a heated rear seats !

where did you manage to find the front seats? i would really like to add ventilated seats to my 23 S60 Ultimate (even though it was supposed to come with them??) but i can't find any online anywhere

[ana100]

Good afternoon. My car is a 2023 XC60 Core. Simple but fully electric seats with heating and memory on the driver's seat. (without a leg extension). I want to install seats with all the options. I found a set of seats from a car from England (right-hand drive). Can I install them in my car? What to do with the passenger presence sensor that will be on the driver's side? Is it possible to move this sensor? The control units on both "new" seats from England are the same 31652047.

My car is also from the USA. Do I understand correctly that I will still need to rearrange the airbags from my native seats to the donor seats?

Yes, it can be done. If You just read carefully this thread, I think all the needed information is here :-)  As You have heating and memory on Your old seats, wiring should be there pretty much ready. I guess You are missing only powering the seat comfort module, that's pin 15 on the big connector. 

I did successfully install right-hand drive seats to left-hand drive car.  You can move the passenger occupancy sensor, not hard at all, but You need to wire it to pin 11 on that big connector under the seat, take the pin from the other seat. The passenger seat controller identifies itself with the pin 21 grounded at the seat control module, so You need add extra wire to Your new passenger seat. Take the pin from the connector of new driver's seat.  

It's good to get Yourself little bit familiar with the wiring diagrams, these are pages called 10_Driver_Seat_LHD and 10_Passenger_Seat_LHD. Pages 159 and 164, in my copy of the wiring diagram. You can check what pins and wires need to be there. 

Good luck!

[Helpful]

Good afternoon. My car is a 2023 XC60 Core. Simple but fully electric seats with heating and memory on the driver's seat. (without a leg extension). I want to install seats with all the options. I found a set of seats from a car from England (right-hand drive). Can I install them in my car? What to do with the passenger presence sensor that will be on the driver's side? Is it possible to move this sensor? The control units on both "new" seats from England are the same 31652047.

My car is also from the USA. Do I understand correctly that I will still need to rearrange the airbags from my native seats to the donor seats?

Yes, it can be done. If You just read carefully this thread, I think all the needed information is here :-)  As You have heating and memory on Your old seats, wiring should be there pretty much ready. I guess You are missing only powering the seat comfort module, that's pin 15 on the big connector. 

I did successfully install right-hand drive seats to left-hand drive car.  You can move the passenger occupancy sensor, not hard at all, but You need to wire it to pin 11 on that big connector under the seat, take the pin from the other seat. The passenger seat controller identifies itself with the pin 21 grounded at the seat control module, so You need add extra wire to Your new passenger seat. Take the pin from the connector of new driver's seat.  

It's good to get Yourself little bit familiar with the wiring diagrams, these are pages called 10_Driver_Seat_LHD and 10_Passenger_Seat_LHD. Pages 159 and 164, in my copy of the wiring diagram. You can check what pins and wires need to be there. 

Good luck!

My new seats have arrived! But there are even more questions.
My car is a 2023 XC60, with the iCup system from the US market. Front seats with 10 adjustments, heating and lumbar support in 1 direction. Plus the driver's seat has memory. Both seats have the same control units (31419928).

New seats from the UK market (right-hand drive), maximum (leg support, massage, ventilation, heating, memory and most likely lateral support). The new seats have the same control units (31652047).

What I saw from the differences.

1. The US seats have position sensors that are located on the runners. In the GB, they are not there at all. Is this a problem? Or are the position sensors in the motors in the GB seats?

2. Passenger presence sensor. In the US seats it is completely different, it is a gel cushion from which a tube goes to the block with wires. But in the GB seats it is a mechanical contact (as in all European ones). Is this a problem, will an American car understand, the passenger position sensor from the GB?

---

I also need help with the pins.
With pin 15 everything is clear, it needs to be added.
The original driver and passenger seat (USA) has pin 13 and 14. Do I understand correctly that this is the seat position sensor? The new seats (GB) do not have these pins. Will this be a problem?

There are still differences with the passenger ones.

The original passenger seat (USA) has pin 31 and does not have pin 11.
The new British passenger seat does not have pin 31 and has pin 11.
How could I find that in the British seat (passenger) pin 11 controls the passenger presence sensor.
What does pin 31 control in the American passenger seat?

[img][/img]

[IMAY2023]

1. The US seats have position sensors that are located on the runners. In the GB, they are not there at all. Is this a problem? Or are the position sensors in the motors in the GB seats?

Those are not position sensors, they are track sensors which are used by the SRS system. There is a config item for it  "127 SEAT TRACK SENSORS" 
You must take them out from the original seats and put them to the replacement seat because your SRS software is using them. If you disable the config, you will get AirBag warning on the DIM. 

2. Passenger presence sensor. In the US seats it is completely different, it is a gel cushion from which a tube goes to the block with wires. But in the GB seats it is a mechanical contact (as in all European ones). Is this a problem, will an American car understand, the passenger position sensor from the GB?

Check this settings " 131 OCCUPANT WEIGHT SENSOR"  You might need to change it from OWS to 03.  Worse case, move it if you can.

[Helpful]

Can anyone tell me what pin 31 is for on the driver's seat of the British version? And it (pin 31) is not on the passenger seat of the GB version. The photo is above in the message.

What difficulties can I face if I start to move the wiring from the right driver's seat (GB) to the left seat to make the left seat the driver's seat. (all about the GB version).

[IMAY2023]

The 94/505 (US Market Driver Seat harness connector). 
The 94/506 (US Market Passenger Seat harness connector). 
94/506:31  PIN is the 4/240 OCCUPANT WEIGHT SENSOR OWS  It's the LIN communication goes to 4/176.1 SUPPLEMENTARY RESTRAINT SYSTEM SRS
94/505:31  PIN is the 4/169 POWER SEAT MODULE DRIVER PSMD. It's the LIN communication goes to 4/183 SEAT FOLD MODULE 3:rd ROW SFM3

94/505:11 PIN > Does not exist on US cars. 
94/506:11 PIN 7/255 SEAT BELT REMINDER MAT it's power goes to 4/176 SUPPLEMENTARY RESTRAINT SYSTEM SRS on PIN F6  (This might not exist on US market)

[Helpful]

The 94/505 (US Market Driver Seat harness connector). 
The 94/506 (US Market Passenger Seat harness connector). 
94/506:31  PIN is the 4/240 OCCUPANT WEIGHT SENSOR OWS  It's the LIN communication goes to 4/176.1 SUPPLEMENTARY RESTRAINT SYSTEM SRS
94/505:31  PIN is the 4/169 POWER SEAT MODULE DRIVER PSMD. It's the LIN communication goes to 4/183 SEAT FOLD MODULE 3:rd ROW SFM3

94/505:11 PIN > Does not exist on US cars. 
94/506:11 PIN 7/255 SEAT BELT REMINDER MAT it's power goes to 4/176 SUPPLEMENTARY RESTRAINT SYSTEM SRS on PIN F6  (This might not exist on US market)

Thanks for your help!!!
In the USA:
I also determined that 94/506:17 is also responsible for OCCUPANT WEIGHT SENSOR OWS. As I understand 94/506:17 + 94/506:31 is one OCCUPANT WEIGHT SENSOR OWS.

Am I right, for this sensor I can try to switch in the settings "131 OCCUPANT WEIGHT SENSOR" from "with OWS" to the 3rd position. And if I'm lucky, the car can accept the European system and accept information from 94/506:11 (a regular contact sensor). But this is not certain. ))) If not, then it is easier to look for US wiring with a gel sensor (cushion).

Can someone tell me if the passenger seat cushions for the European market (with a contact passenger presence sensor) and the US market (with a gel passenger presence cushion) are the same? I can't find this information. Some people say that the American seat cushion has a recess for the gel cushion (i.e. the cushion is thinner).

[IMAY2023]

94/506:17 is the power of the OWS sensor goes to the CEM shared with other sensors