Heated seat wire harness part number?

[MENTION=58019]Alaska[/MENTION], sorry I did not take any pictures of the install.

My wife's truck is a 2017 SR5

Yes, I ordered (and used) the list of parts compiled by Ezekiel2222.

If you have ever taken automotive seats apart there is nothing special about the process. Just do not be afraid to push/fold/bend the foam out of your way when cutting or installing the hog rings. If you haven't worked with upholstery before, then you will take longer but it is not complicated. If you are unsure then take plenty of photos for yourself as you disassemble so that you have something to reference during the re-installation. I found the 2010 manual helpful as it shows how the seats and their plastic trim go together.
Get yourself a strong pair of nippers to cut the existing hog rings. It will be pretty obvious where to put the rings when everything goes back together. (or refer to your pictures). There are metal rods molded into the foam seat parts and there are metal or plastic rods that are either sewn into the seat cover or slip into an obvious pocket sewn into the seat cover. With only a few exceptions, the hog rings will be holding two rods together.
As I mentioned, the repair manual shows where the rings/rods are located for each seating surface. For the seat bottoms I removed the rings along each side and the ones in the center. (I left the row at the back which acted like a hinge when I folded the cover back to expose the foam.) When I took the seat back covers off the zippers at the back made it easy. I did not remove any rings from the rod attachments on the side with the airbag.

I bought this pair of pliers: www.amazon.com/gp/product/B00FS0WFAA/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I also bought and used these rings: www.amazon.com/gp/product/B002L7WHGU/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I also picked up this upholstery took kit: www.amazon.com/gp/product/B01JKDJNCS/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

Adding the heating pads is as simple as laying them on the foam (their texture makes them tend to stay put) and then putting the seat cover back on making sure to keep the heating pad flat with no folds and smooth any wrinkles along the way. Once you have all of the rings replaced and no wrinkles then just put the assembly back onto the bottom frame and fold the plastic clips sewn into the edges back onto the frame.

There is already a hole at the back of your bottom seat cover to route the wire harness through. My passenger seat (manual) had a dummy plug where the seat heater connector goes. Just pop it off. The wire harness from the seat back connects to the harness from the bottom and that goes to the controller and then to the new wire harness. Everything and gets attached as you see fit to the many attachment points in the bottom of the seat. Since the passenger seat is manual I had several unused plugs to tuck away.

For the driver seat (power) I replaced the existing harness with the new one and again attached everything to the seat bottom using the provided attachment points. All of the electrical connections were absolutely plug and play. But remember, I only have a fully functioning passenger seat!!

I have been researching the missing part of the driver's seat circuit and have learned much. What is missing are the switch wires and 12V+ that go to the controller. The switch wires are present at the switch in the console. I have identified the circuit in the wiring diagram so now I believe that I just have to find the corresponding connectors in the truck and add the missing wires. I will certainly take photos if I am successful.

I hope this helps.
 
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Update: Adding the missing wires for the SR5 driver seat harness is NOT going to be a project for the timid or inexperienced. At least, I am not timid:rolleyes:

The 12V+ wire has to be added from the FO1 connector at the driver kick panel to the Ob1 connector at the driver seat.
The switch wires have to be added from the 2F connector (found on the Main Body ECU) to the Ob1 connector at the driver seat.

While I am certain that there are easier work-arounds I want to keep the wiring as close to factory as possible. Plus, I like the challenge.

While it may not be smart, I am assuming that the ECU will support this because the passenger side already works perfectly...

EPIC FAIL..
As the saying goes, a little knowledge......
I installed the wires, triple checked everything and fired it up. No smoke, strange noises but now the power locks are not functioning properly. Also, the hatch lock/window/latch is not working properly.
Hopefully I only pooched the Main Body ECU but we will see.
 
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Update:

Well, I got the heated seats working perfectly in the wife's SR5 but I am still having problems with the lock system and I have run out of ideas.

To recap: I added stock heated seats to my SR5. The passenger side was already wired for it and works just fine. The driver side needed the switch wires and power routed to its controller. I added the switch wires without issue. Due to my own idiocy, I misinterpreted the wiring diagram and instead of adding the power wire to the 2F, position 5 connection, I added a wire to the 2B, position 6 wire. Both of these connectors are in the driver side junction box.
When I powered the vehicle up the driver's seat did not heat (of course) but the lock circuit now has major issues. I removed the incorrect wire immediately. No fuses burned. No odd noises or smells occurred.
If you try to lock or unlock with the interior buttons the 4 doors seem to try to lock/unlock but are not always successful, and I get a buzz/hum from something in the rear hatch. The fog lights now try to flash when using the interior lock buttons. The rear hatch release is inoperable. If you cycle the locks back and forth sometimes the rear hatch will try to open. With the remote, the driver door will unlock and the other 3 doors may or may not unlock. The fog lights also try to flash.
I have replaced the Main Body ECU, the Driver Side Junction Box and the Door Lock ECU but the issue remains largely unchanged.
Can you suggest what to check next?
Thanks in advance
David (Techflyer)
 
It Works!!

Let me begin with: Old Red is, indeed, THE MAN!!!!

We talked through several possibilities, I connected TechStream and found no codes, lost communication or anything obvious.
It turned out to be a missed ground strap connection at the driver side kick panel.
All function is restored and the fog lights no longer blink when you lock the car.
:banana::banana::banana:
 
You guys are doing a lot of work to have a warm ass!
I have had my 4runner for a year, and never used this feature and dont think I ever will. I dont want a hot ass! Now give me AC and we can talk.
 
For my wife, the heated seats are more than just a novelty due to the lingering effects of an accident many years ago.
Besides, who doesn't enjoy a challenge? :becky:
 
Dumb question I guess but I also have a 2016 trail with cloth seats. I bought a set of leather heated seats out of another 5th gen. What would be the process of wiring those in? Would I buy the same parts you listed minus the heat pads?
 

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