10 Way Power Seat Conversion

Recently I picked up a 10 way power driver's seat out of a 2020 to install in my 2019 pro. The salvage yard agreed to provide the complete seat harness however they cut the harness about 16 inches up the stalk. My plan is to swap the airbags, leather components from my seat to the 2020 frame as the power seat is cloth. Does anyone know where I can find the wiring harness diagrams for both the 2020 and the 2019? I'm including pictures of the harness, the connectors on the seat side of the harness along with pictures of the wires. The smaller white connector was not used on the power seat (perhaps for heated seat elements). The yellow connector is for the airbag(s)I believe. Disclaimer: I am color blind so I will ask a friend to choose the correct colors to splice.

 

I think you are showing the passenger's power seat harness.

 

Airbag, seat occupancy sensor/seat belt latch sensor and power seat motors are your 3 plugs.

The big black and white wires should be your power and ground for the seat motors, the other 4 I think would be for memory related settings or for limit sensors but Im not sure.

I would say follow the wires into where they go on the seat itself and it should give you a better idea of what is what.

 

2005-2019 Tacoma bucket seat compared to 2020 Tacoma power bucket seat
2005-2019 Tacoma bucket seat compared to 2020 Tacoma power bucket seat

 

This is definitely off of my driver's side power seat. I removed it myself and it hadn't been removed since it left the factory.

 

The small white plug (occupancy/seatbelt) was not connected. Perhaps that goes to another sensor that didn't come with the seat? Thank you for your recommendation of tracing the harness wires within the seat. Great suggestion. I will do so.

 

Make sure he's sober, and not feeling particularly humorous..

 

@caribe makaira Thank you! I hadn't seen this. Your posts encourage me. It appears at a surface level that all I will need to do is swap the cushions and seat warming elements of my current seat to the new seat with my existing harnesses and add a 30amp fused power wire and ground wire to make this work. If so, this is a no brainer. hint hint...you can buy a used power seat out of a totalled vehicle for pennies on the dollar of a new one. Someone should make adapter harnesses to go from a 202x power seat to a 201x factory harness (+ power and ground) ...I'm sure they could sell them for $80 each.

 

Remaining wires on BA3 match the seat heater. (guestimate)

 

Your analysis is totally spot on. The connectors under my existing manual seat are different. I'm not worried about this however as I hope to swap the cushions and the heating elements from the manual seat into the power frame. The salvage company was only going to provide me with the seat bottom electronics but I paid extra for the upper seat frame as well thinking that I would have to swap the upper and lower cushions into the seat.

 

Do they resemble these?

 

Yes, I believe so. I will disconnect them in the morning and check. Thank you!

 

@ORDadster Post some pictures of the two seat frames.

 

Did you end up installing the seat successfully?

 

Any new information on this ??

 

Would you mind helping me understand what all the other wires on both harnesses besides the black and white (power/ground) are used for here in relation to the seat heaters? Trying to figure out how I can wire in seat heater switches to get these to work on my 2015.
I know I’m asking for your help all over right now with this wiring, I really appreciate it.