Adding Heated Seats

[brental1]

@brental1 --- I'm re-writing a how-to for the seats, I'm at the station for my 24 hr shift -- it will be posted once it's ready... as far as the heated wheel, you'll need a new clock spring and the wheel, haven't done mine yet but it is on my list..

-=FM45=-

Great, will be looking for you how-to.

 

[ajfRam]

I am also interested.
I have been struggling with my 2022 bighorn and searching for any help.
Seats are in, pre wired. So that was great.
Ecu configured.
Driver seat can be controlled only by setting the Auto on comfort to "on at all starts."
Can not get the controls to populate the radio.
Uconnect5.
Just purchased the Temperature Control with the buttons.
Yanked the entertainment stack, plugged it in. Nothing on heated seat buttons, everything else was functional.

I am not the lucky one who got the temp control harness pre wired on a level 1 big horn?
I can't be the only person running into this.
Was happy with soft controls. Nope, nor the hard controls.

 

[FM45]

The changes you want to make are in the BCM... have you made the changes with Alfa and confirmed the change was made??

-=FM45=-

 

[ajfRam]

I did. Thanks to the posts in other forums, I found this.

FRONT HEATED SEATS:
- ECUConfig 3: front heated seats present- YES
- ECUConfig 4: heated seat present- YES
- Memory: front heated seats present- YES
- Seats B: front heated seat levels- 3 level (high/med/low/off)
- Seats B: seat material front- TYPE 3 (limited, power wagon), TYPE 1 (Laramie), TYPE 2 (big horn)
- CustSetMenu 1: auto on comfort CSM present- FEATURE 2 - 3 OPTION
- Cabin Net: CSWM comfort seat wheel module

I checked the changes numerous times and they all changed in the bcm.

Comfort and seats
Auto on comfort, only settings that show.

Thanks

 

[brental1]

I am also interested.
I have been struggling with my 2022 bighorn and searching for any help.
Seats are in, pre wired. So that was great.
Ecu configured.
Driver seat can be controlled only by setting the Auto on comfort to "on at all starts."
Can not get the controls to populate the radio.
Uconnect5.
Just purchased the Temperature Control with the buttons.
Yanked the entertainment stack, plugged it in. Nothing on heated seat buttons, everything else was functional.

I am not the lucky one who got the temp control harness pre wired on a level 1 big horn?
I can't be the only person running into this.
Was happy with soft controls. Nope, nor the hard controls.

Can you elaborate?
"Seats are in, pre wired. So that was great." Did you swap seats into your truck; or add seat heater pads to your existing seats? Either way, what do you mean 'prewired'? Did you find all the wires you needed in the big yellow connector?
And, "I am not the lucky one who got the temp control harness pre wired on a level 1 big horn". I THINK there are only 5 wires to that connector (CAN IHS +, CAN IHS -, FUSED B+, GROUND, HAZARD SWITCH SENSE) regardless of option, so everything in that center stack module, except Hazard, communicates to the truck through CANBUS.

 

[ajfRam]

Can you elaborate?
"Seats are in, pre wired. So that was great." Did you swap seats into your truck; or add seat heater pads to your existing seats? Either way, what do you mean 'prewired'? Did you find all the wires you needed in the big yellow connector?
And, "I am not the lucky one who got the temp control harness pre wired on a level 1 big horn". I THINK there are only 5 wires to that connector (CAN IHS +, CAN IHS -, FUSED B+, GROUND, HAZARD SWITCH SENSE) regardless of option, so everything in that center stack module, except Hazard, communicates to the truck through CANBUS.

Thank you for this information.
Yes, Seats were swapped from a 2022 sport to 2022 bighorn.
Airbags, everything untouched Just unbolted and unplugged.
Driver heated seat works. Comes on at auto start only.
The yellow connectors are there.
I would need a diagram or something to reference before I could check the number of wires under the seats at these connections.
Any reference, greatly appreciated.
For the Temp control, yes I have the 5 wires present. Was unclear if that may need additional wiring. So did not install.
Everything on the Temp Control worked except the heated seat/wheel. I left the original temp control in for now. Was super easy to pull the entertainment stack, but was not going to unplug everything without being sure.

 

[FM45]

@brental1 -- I can confirm that your vehicle is not a unicorn. I have modified 4 Rams that needed to have the body harness wires added... as far as the stack switch (seats/wheel) ... you just add it and when the changes are made in Alfa, those 3 buttons become active... don't get caught up on the amount of wiring you see or don't -- those switches send 'data' to work their magic

-=FM45=-

 

[FM45]

@ajfRam

Drivers

Cav Circuit Gauge Color Function
1 G13 0.35 VT/BU ADJUSTABLE PEDALS SENSOR SUPPLY
2 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
3 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
4 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
5 M11 0.35 YE/VT COURTESY LAMPS DRIVER
6 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
7 P205 0.50 GN/WH ADJUSTABLE PEDALS MOTOR FORWARD
8 P206 0.50 GN/BU ADJUSTABLE PEDALS MOTOR REARWARD
9 P28 0.35 GN/BN SENSOR/SWITCH RETURN
10 P989 0.35 BG/GN SENSOR/SWITCH RETURN
11 Q102 0.35 OG/BU ADJUSTABLE PEDALS SWITCH FORWARD
12 Q103 0.35 OG/GN ADJUSTABLE PEDALS SWITCH REARWARD
13 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
14 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
15 P419 0.35 OG/BK HEATED SEAT SENSOR RETURN
16 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
17 D165 0.35 WH/BU CAN IHS (+)
18 D166 0.35 WH CAN IHS (-)
19 R263 0.35 BU/VT DRIVER SEAT POSITION SENSOR VOLTAGE
20 R57 0.35 GN/GY DRIVER SEAT BELT BUCKLE SWITCH SENSE
21 R729 0.35 GN/BK DRIVER SEAT DETECTION RETURN
22 R5 0.35 BU/VT LEFT SEAT THORAX SQUIB 1 LINE 2
23 R7 0.35 GN/GY LEFT SEAT THORAX SQUIB 1 LINE 1
25 A942 1.5 RD FUSED B(+)
26 A907 0.75 RD FUSED B(+)
30 Z909 2.0 BK GROUND
30 Z909 1.0 BK GROUND

Pass

Pin Information
Cav Circuit Gauge Color Function
1 F921 0.75 PK/YE FUSED IGNITION
2 A907 0.75 RD FUSED B(+)
3 F924 0.75 PK/YE FUSED IGNITION
4 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
5 F922 0.75 PK/YE FUSED IGNITION
6 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
7 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
8 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
9 P419 0.50 OG/BK HEATED SEAT SENSOR RETURN
10 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
11 M11 0.35 YE/VT COURTESY LAMPS DRIVER
12 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
13 F944 0.50 PK/GN FUSED IGNITION
14 D163 0.35 WH/DB CAN IHS (+)
15 D164 0.35 WH CAN IHS (-)
16 R6 0.35 VT/BU RIGHT SEAT THORAX SQUIB 1 LINE 2
17 R8 0.35 GY/GN RIGHT SEAT THORAX SQUIB 1 LINE 1
18 R58 0.35 BU/GY PASSENGER SEAT BELT SWITCH SENSE
19 R730 0.35 BU/BK PASSENGER SEAT DETECTION RETURN
20 D13 0.35 YE/BU CAN C (+)
21 D14 0.35 YE CAN C (-)
22 R264 0.35 VT/BU PASSENGER SEAT POSITION SENSOR VOLTAGE
23 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
25 A949 2.0 RD FUSED B(+)
26 C91 1.5 DB/GN HEATED STEERING WHEEL FEED
29 C986 1.5 GY/DB HEATED STEERING WHEEL RETURN
30 Z909 2.0 BK GROUND

-=FM45=-

 

[brental1]

@brental1 -- I can confirm that your vehicle is not a unicorn. I have modified 4 Rams that needed to have the body harness wires added... as far as the stack switch (seats/wheel) ... you just add it and when the changes are made in Alfa, those 3 buttons become active... don't get caught up on the amount of wiring you see or don't -- those switches send 'data' to work their magic

-=FM45=-

Thanks for confirming my assumption that the center stack switches (except Hazard) communicate through CANBUS. Also, much thanks for posting the pinouts for the underseat connectors. I wasn't as lucky as some others. I don't have the Heated Steering Wheel Feed/Return wires; nor the CAN IHS (+) or (-) wires in the big yellow connectors. I can figure out how to route the Heated Wheel Feed/Return from the big yellow to the clock spring connector; but I have these questions if you can answer.
1. Is there a 'hub' when I should get the CAN IHS? If so, where is it located?
2. Do you have a part number for the clock spring I need (with the additional 2 pins for heat)?
3. Do you have part numbers for harnesses I need to get from the big yellow to the Comfort Seat and Steering Wheel Module? And, do I need harnesses to connect the heated seat pads to this Module, or do the seat pads plug directly into the Module? If I do need additional harnesses, do you have those part numbers?

Thanks, Brent

 

[ajfRam]

Thanks to these two for sharing and being awesome!

@Jimmy07
@FM45

Thanks for the push/knowledge to go forward!
Committed to trying again this morning.
Attacked the entertainment stack, swapped the temp control.
Went back into Alpha and had to turn the heated steering wheel options on (even though that is not present yet) this seemed to make a difference. After the first start the heat seat buttons lit up!
I have control of the Driver and now the passenger seats! Avoided the wiring snafu and that was a huge relief!
My rear end is toasty as I write.

This solved the hard buttons(which I was happy to avoid) but still after all this, nothing comes up for the soft controls. This still leaves me scratching why they won't populate the screen.

Now I am empowered to go after the steering wheel and a remote start. One baby step at a time.
These forums are so helpful and everyone that contributes, Big Thanks all around.

 

[brental1]

Another question on this swap. There are two PNs for the Module-Heated Seat. 68433906AC is for option codes X8Z, CMA and NHS.
68433907AC is for same three option codes X8Z, CMA, NHS; and adds CAJ.

Which one do I need for heated seats and steering wheel?

 

[FM45]

@brental1 --- I am still finishing up the how-to, which I hope will clear up some of your questions... I am writing it on my down time... that's why it's not done yet

-=FM45=-

 

[FM45]

@ajfRam ---
these are my settings - I have the soft buttons on the screen as well as the manual buttons..

** Cloth Seats

ECUConfig 3:
Front Heated Seats Present: Yes
Heated Steering Wheel Present: Yes

ECUConfig 4:
Heated Seat Present: Yes

Memory:

Heated Steering Wheel Present: Yes
Heated Seat Material Type: Default
Heated Wheel Material Type: Wood/Leather
Front Heated Seat Present: Yes

Seats A: (Rear)
Configuration Seat A: Not Programmed
Rear Heated Seat Levels: Default
Rear Vented Seat Levels: Default
Heated Wheel Levels: Not defined

Seats B: (Front)
Front Heated Seat Levels: 3 Level (High / Med / Low / Off)
Wheel Material Type Expansion: Type 3
Seat Material Front: Type 4
Seat Material Rear: Type 0

Cabin Net:
Comfort Seat Wheel Module (CSWM): Enabled

-=FM45=-

 

[ajfRam]

@FM45
All cconfrimed to what I have except...
I had Type 2 for the Seat and Wheel Material.
I was told it was TYPE 2 for Bighorn?
I still can't imagine these two setting would prevent the soft controls.
Thanks

 

[FM45]

@ajfRam -- it's been a while, but you added the posted change - what does that do... I don't remember making such edit...

- CustSetMenu 1: auto on comfort CSM present- FEATURE 2 - 3 OPTION

-=FM45=-

 

[ajfRam]

@FM45

It's what it sounds like, it allows the auto on comfort settings, turns heated wheel, seats on at all starts,remote, or off. That was the only control I had until I installed the hard buttons.

 

[brental1]

@ajfRam

Drivers

Cav Circuit Gauge Color Function
1 G13 0.35 VT/BU ADJUSTABLE PEDALS SENSOR SUPPLY
2 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
3 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
4 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
5 M11 0.35 YE/VT COURTESY LAMPS DRIVER
6 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
7 P205 0.50 GN/WH ADJUSTABLE PEDALS MOTOR FORWARD
8 P206 0.50 GN/BU ADJUSTABLE PEDALS MOTOR REARWARD
9 P28 0.35 GN/BN SENSOR/SWITCH RETURN
10 P989 0.35 BG/GN SENSOR/SWITCH RETURN
11 Q102 0.35 OG/BU ADJUSTABLE PEDALS SWITCH FORWARD
12 Q103 0.35 OG/GN ADJUSTABLE PEDALS SWITCH REARWARD
13 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
14 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
15 P419 0.35 OG/BK HEATED SEAT SENSOR RETURN
16 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
17 D165 0.35 WH/BU CAN IHS (+)
18 D166 0.35 WH CAN IHS (-)
19 R263 0.35 BU/VT DRIVER SEAT POSITION SENSOR VOLTAGE
20 R57 0.35 GN/GY DRIVER SEAT BELT BUCKLE SWITCH SENSE
21 R729 0.35 GN/BK DRIVER SEAT DETECTION RETURN
22 R5 0.35 BU/VT LEFT SEAT THORAX SQUIB 1 LINE 2
23 R7 0.35 GN/GY LEFT SEAT THORAX SQUIB 1 LINE 1
25 A942 1.5 RD FUSED B(+)
26 A907 0.75 RD FUSED B(+)
30 Z909 2.0 BK GROUND
30 Z909 1.0 BK GROUND

Pass

Pin Information
Cav Circuit Gauge Color Function
1 F921 0.75 PK/YE FUSED IGNITION
2 A907 0.75 RD FUSED B(+)
3 F924 0.75 PK/YE FUSED IGNITION
4 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
5 F922 0.75 PK/YE FUSED IGNITION
6 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
7 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
8 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
9 P419 0.50 OG/BK HEATED SEAT SENSOR RETURN
10 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
11 M11 0.35 YE/VT COURTESY LAMPS DRIVER
12 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
13 F944 0.50 PK/GN FUSED IGNITION
14 D163 0.35 WH/DB CAN IHS (+)
15 D164 0.35 WH CAN IHS (-)
16 R6 0.35 VT/BU RIGHT SEAT THORAX SQUIB 1 LINE 2
17 R8 0.35 GY/GN RIGHT SEAT THORAX SQUIB 1 LINE 1
18 R58 0.35 BU/GY PASSENGER SEAT BELT SWITCH SENSE
19 R730 0.35 BU/BK PASSENGER SEAT DETECTION RETURN
20 D13 0.35 YE/BU CAN C (+)
21 D14 0.35 YE CAN C (-)
22 R264 0.35 VT/BU PASSENGER SEAT POSITION SENSOR VOLTAGE
23 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
25 A949 2.0 RD FUSED B(+)
26 C91 1.5 DB/GN HEATED STEERING WHEEL FEED
29 C986 1.5 GY/DB HEATED STEERING WHEEL RETURN
30 Z909 2.0 BK GROUND

-=FM45=-

I'm missing A LOT of these wires!

 

[brental1]

Thank you for this information.
Yes, Seats were swapped from a 2022 sport to 2022 bighorn.
Airbags, everything untouched Just unbolted and unplugged.
Driver heated seat works. Comes on at auto start only.
The yellow connectors are there.
I would need a diagram or something to reference before I could check the number of wires under the seats at these connections.
Any reference, greatly appreciated.
For the Temp control, yes I have the 5 wires present. Was unclear if that may need additional wiring. So did not install.
Everything on the Temp Control worked except the heated seat/wheel. I left the original temp control in for now. Was super easy to pull the entertainment stack, but was not going to unplug everything without being sure.

Have you been able to determine which wires you had in the yellow connectors, compared to FM45's list? I'm missing a lot of them in my 2022 Big Horn with Level 1 Equipment Group. Did you already have heated seats (Level 2 Equipment Group) in your truck before swapping the seats in?

 

[Dadcpu]

Hello Aaron,

I had Custom Upholstery here in Richmond VA install front seat heaters in my 2019 Bighorn. They are great and the button is on the side of the seat in front of my seat controls. They have HIGH and LOW and OFF on the button and high gets really toasty Hope this helps !

 

[brental1]

@ajfRam

Drivers

Cav Circuit Gauge Color Function
1 G13 0.35 VT/BU ADJUSTABLE PEDALS SENSOR SUPPLY
2 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
3 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
4 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
5 M11 0.35 YE/VT COURTESY LAMPS DRIVER
6 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
7 P205 0.50 GN/WH ADJUSTABLE PEDALS MOTOR FORWARD
8 P206 0.50 GN/BU ADJUSTABLE PEDALS MOTOR REARWARD
9 P28 0.35 GN/BN SENSOR/SWITCH RETURN
10 P989 0.35 BG/GN SENSOR/SWITCH RETURN
11 Q102 0.35 OG/BU ADJUSTABLE PEDALS SWITCH FORWARD
12 Q103 0.35 OG/GN ADJUSTABLE PEDALS SWITCH REARWARD
13 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
14 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
15 P419 0.35 OG/BK HEATED SEAT SENSOR RETURN
16 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
17 D165 0.35 WH/BU CAN IHS (+)
18 D166 0.35 WH CAN IHS (-)
19 R263 0.35 BU/VT DRIVER SEAT POSITION SENSOR VOLTAGE
20 R57 0.35 GN/GY DRIVER SEAT BELT BUCKLE SWITCH SENSE
21 R729 0.35 GN/BK DRIVER SEAT DETECTION RETURN
22 R5 0.35 BU/VT LEFT SEAT THORAX SQUIB 1 LINE 2
23 R7 0.35 GN/GY LEFT SEAT THORAX SQUIB 1 LINE 1
25 A942 1.5 RD FUSED B(+)
26 A907 0.75 RD FUSED B(+)
30 Z909 2.0 BK GROUND
30 Z909 1.0 BK GROUND

Pass

Pin Information
Cav Circuit Gauge Color Function
1 F921 0.75 PK/YE FUSED IGNITION
2 A907 0.75 RD FUSED B(+)
3 F924 0.75 PK/YE FUSED IGNITION
4 F507 0.75 GN/PK LEFT FRONT SEAT BACK SUPPLY
5 F922 0.75 PK/YE FUSED IGNITION
6 F503 0.50 OG/PK LEFT FRONT SEAT CUSHION SUPPLY
7 P413 0.35 OG/GY LEFT FRONT HEATED SEAT CUSHION TEMP SENSE
8 P415 0.35 OG/VT LEFT FRONT HEATED SEAT BACK TEMP SENSE
9 P419 0.50 OG/BK HEATED SEAT SENSOR RETURN
10 P921 0.35 OG/GN LEFT FRONT SEAT VENT CONTROL
11 M11 0.35 YE/VT COURTESY LAMPS DRIVER
12 M5 0.35 WH/GN AMBIENT LIGHTING CONTROL
13 F944 0.50 PK/GN FUSED IGNITION
14 D163 0.35 WH/DB CAN IHS (+)
15 D164 0.35 WH CAN IHS (-)
16 R6 0.35 VT/BU RIGHT SEAT THORAX SQUIB 1 LINE 2
17 R8 0.35 GY/GN RIGHT SEAT THORAX SQUIB 1 LINE 1
18 R58 0.35 BU/GY PASSENGER SEAT BELT SWITCH SENSE
19 R730 0.35 BU/BK PASSENGER SEAT DETECTION RETURN
20 D13 0.35 YE/BU CAN C (+)
21 D14 0.35 YE CAN C (-)
22 R264 0.35 VT/BU PASSENGER SEAT POSITION SENSOR VOLTAGE
23 F919 0.75 PK/BG FUSED IGNITION SWITCH OUTPUT
25 A949 2.0 RD FUSED B(+)
26 C91 1.5 DB/GN HEATED STEERING WHEEL FEED
29 C986 1.5 GY/DB HEATED STEERING WHEEL RETURN
30 Z909 2.0 BK GROUND

-=FM45=-

Can you tell me the names of these connectors are in connectors.dcctools so I can find drawings of them?
Thanks, Brent