Hello
In the power distribution center under the hood there is a 40 amp maxi fuse in position 8, this feeds the circuit breaker in the fuse box, the circuit breaker is number 2 a 20 amp, which feeds the Heated seat control module
The easiest way to see the fuse box is to pull down the cover under the steering column, grasp the panel under the column at the top and pull towards the drivers seat to disengage the clips at the top and allow the panel to pivot downwards
If the fuse and circuit breaker are both good you will need a Scan toll to do further testing
I hope that this helps you
If you need more information just let me know
thank you
Donny

