Driver side heated seat stopped working!!!

my drivers side heated seat stopped working, the passenger seat works are they on two different fuses or should I bring it in to dealership?

 

Dunno.

Check the wiring for fuses.

 

Old thread but posting this in the 2nd gen section for those who have had their factory heated seats fail. This is happening a lot with the 3rd gens which you can check out in this thread:

https://www.tacomaworld.com/threads/factory-heated-seats-failure.528038/

After noticing that the drivers side heated seat wasn't working, I checked the 30A heated seat fuse under the hood, and it was fine. Looked at the issues the 3rd gen trucks were having so I checked out my drivers side heater amp under the seat and it looked ok. However, after pulling the connection, it was apparent that the issue was the connection had burnt up just like the 3rd gens:



Some of the 3rd gens wired leads directly to the pins on the amp, so I did the same with some 16ga wire I had.




Put the amp back together and spliced the wires in after cutting the connector off. Clipped it back where it was located.




Toasty buns again! The parts are essentially the same as 3rd gens, but the one difference I notice is the 2nd gens have 5 wire leads as opposed to the 3rd gens which seem to only have 4 wires. The passenger seat will get the same treatment when time permits... or realistically when it goes out.

 

Best to do it now before it gets burnt to much to the point that the circuit board is no longer usable

 

Had my seat fixed today, I was able to get the white plastic connector off the board with a lot of patience. I used a Yellow Olfa utility knife and a ligther to heat the blade and melted the plastic between the pins. Did not want to take the chance to pry it off in fear of ruining the circuit board. The electrical guy who did the soldering used metal rings that he clamped on both ends of each wire. Then he slid that on the pins of the circuit board and he put a few drops of weld to fix it together. He said that the reason these fail is that that type of connection is not good for heat. As the wires get hot, the connection becomes loose (by the metal expanding over time) and it "arcs" which is the reason it burn & melt the plastic. Probably Toyota are aware of this and they know that it will fail and wont work anymore but don't want to issue a recall since it will cost them a fortune to replace every heating pad in every affected vehicles.