electrical problems
I still don't have any idea about the TCS switch...but as far as the defroster and seat controls. There's two fuses which control the rear defrost. One is also tied into the seat controls. It's not a normal type fuse, it's most like a circuit breaker so it will trip instead of totally blow, but apparently it goes bad pretty easily. (In the fuse panel inside the car, it's the top silver one on the right hand side.) Most people replaced that and their problem was solved. Some replaced it with a regular fuse, others bought the circuit breaker type. I just went ahead and bought the circuit breaker type...there isn't that much difference in price.
From the posts I saw, people were saying if the fuse didn't solve the problem, then it's a problem in the wiring, maybe a ground wire that's touching or a wire that got rubbed through...something. Anyways, I tried replacing the fuse, didn't help, so now there's going to be some fun tracing of wires going on....ugg...

