Recently installed new leather with heated seat elements.
Here is my video review of the leather and quick look at heated seat switches
This information is for a 1997 FZJ80, I am not sure if all models have the factory plugs under the center console, please check to verify.
PREFACE
The truck has two plugs, drivers and passenger side heated seat plugs in the factory wiring loom located under the center console. If you buy one of the two switches below they come with the correct pigtails to plug directly into the factory wiring loom. The relays are in the truck already and the switches work, meaning that they light up and the high and low function regulates the power to the heating elements.
The power for the high and low heated seat elements flows from the factory loom to the underside of the seat where there is another plug. That plug contains the functions for the power seats...the only plug you unplug if you were going to remove the seat from the truck.
This is where Toyota deleted the pins for heated seats. On the seat side of the disconnected plug there are two open spots for a high and low pin to be added. You will have to tap into the ground at this point as well.
What we do not have from the factory are heating elements in the seats (the part between the foam and leather). This is what you must add in order to make this whole system work.
Basic Breakdown:
White with black trace = Ground - you will need to tap into this one, as it is also used for the powered seats.
Blue with black trace = +12v when you have the OEM/JDM switch in the Lo position
Blue with orange trace = +12v when you have the OEM/JDM switch in the Hi position.
There are some great threads with all the information you would need, but I thought I would try and pull most of it into one thread.
Threads to reference:
Seat Heater Switches
TOYOTA HEATED SEAT SWITCHES
There are two different types of switches:
* Notice that both of these switches come with the correct pigtail allowing you to plug into the factory wiring loom*
Vertical
Horizontal
HEATED SWITCH WIRING LOOM LOCATION ALREADY IN THE TRUCK
There are already heated seat plugs in the factory loom under the center console.
Remove the center console
Look around for three plugs bundled together that are unused. Two are for the heated seat switches to plug into. I believe the third ( on the top of the right plugs in the picture below) is for the center console fridge which was not an option in the US.
Here is what the two look like for the heated switches:
Picture from @Chris FJ80 (link to pictures)
PLACEMENT OF HEATED SEAT SWITCH
I choose to use the horizontal switch and put them next to the rear heater switch.
To do this I cut the wiring pigtail that was included with the switches in half and added 3 feet of wire to each wire. I soldered all of these connections so that I never had to touch them again. Just make sure you join the correct wires.
Here you can see the extend switch installed into the factory loom:
Here is my video review of the leather and quick look at heated seat switches
This information is for a 1997 FZJ80, I am not sure if all models have the factory plugs under the center console, please check to verify.
PREFACE
The truck has two plugs, drivers and passenger side heated seat plugs in the factory wiring loom located under the center console. If you buy one of the two switches below they come with the correct pigtails to plug directly into the factory wiring loom. The relays are in the truck already and the switches work, meaning that they light up and the high and low function regulates the power to the heating elements.
The power for the high and low heated seat elements flows from the factory loom to the underside of the seat where there is another plug. That plug contains the functions for the power seats...the only plug you unplug if you were going to remove the seat from the truck.
This is where Toyota deleted the pins for heated seats. On the seat side of the disconnected plug there are two open spots for a high and low pin to be added. You will have to tap into the ground at this point as well.
What we do not have from the factory are heating elements in the seats (the part between the foam and leather). This is what you must add in order to make this whole system work.
Basic Breakdown:
- Plug Switch into factory loom under center console
- Add heated seat elements to the seat. Bottom side you sit on and the back to each seat.
You will need to wire those together in each seat. You will have 3 wires for each seat (a positive HIGH, positive LOW and ground.) - Add two pins to each open plug under each of the seats, and tap into the ground wire on the same plug.
White with black trace = Ground - you will need to tap into this one, as it is also used for the powered seats.
Blue with black trace = +12v when you have the OEM/JDM switch in the Lo position
Blue with orange trace = +12v when you have the OEM/JDM switch in the Hi position.
There are some great threads with all the information you would need, but I thought I would try and pull most of it into one thread.
Threads to reference:
Seat Heater Switches
TOYOTA HEATED SEAT SWITCHES
There are two different types of switches:
* Notice that both of these switches come with the correct pigtail allowing you to plug into the factory wiring loom*
Vertical
Horizontal
HEATED SWITCH WIRING LOOM LOCATION ALREADY IN THE TRUCK
There are already heated seat plugs in the factory loom under the center console.
Remove the center console
Look around for three plugs bundled together that are unused. Two are for the heated seat switches to plug into. I believe the third ( on the top of the right plugs in the picture below) is for the center console fridge which was not an option in the US.
Here is what the two look like for the heated switches:
Picture from @Chris FJ80 (link to pictures)
PLACEMENT OF HEATED SEAT SWITCH
I choose to use the horizontal switch and put them next to the rear heater switch.
To do this I cut the wiring pigtail that was included with the switches in half and added 3 feet of wire to each wire. I soldered all of these connections so that I never had to touch them again. Just make sure you join the correct wires.
Here you can see the extend switch installed into the factory loom:
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