The heat strips burn out
there is a kit on ebay I was looking at to replace mine
one of the members mentioned it here
will see if I can find the link, it looked like a nice upgrade to a thermostat regulated setup
Here is the link, there are others that would work but I liked the single button control
2 Seats Car Seat 6 Level Heated Seat Pad Cushion Round Switch Kit Carbon Fiber | eBay
Carbon Fiber 5-level switch seat heater 2 seats heated seat kit fit12V car 4 pad | eBay
I put that set in. I love it. The factory heaters are lame compared to these. My next move is to get a 2nd set and separate the driver's side from passenger side, using the 2nd switch. Then I'll separate the backs from the bottoms. Essentially, I'll have a dual dial switch for each seat, one dial controls the base, the other will control the back. This gives each passenger the ability to heat their butt or back, or both, the way they like.
The whole kit is cheaper than a single replacement heating pad, which is why I went this route.
As far as the super cab seats go.... It's very easy to remove the covers. I pulled my seats out and chased wires, wasn't super hard (for me) to figure out which wires to use. I have the old plug somewhere, doesn't mean I know what wire is what.
IIRC, the system is very simple.... One power wire from the cjb, one ground, one for the switch and one that runs to the passenger seat, which was just the switch wire. the ground for the passenger seat runs from the driver's harness as well.
When I put the new set in, I used the factory power wire and ground to the new relay, then just ran the wires for the new pads to the new controller, it was very easy. Just get into the harness, only 1 wire is controlled by the ignition, that's the seat heater.
Sent from my Redmi Note 9 Pro using Tapatalk