So my 4 high and 4 low work just fine no issues there. But every now and then it don't work at all. And it's not mechanical. I have to pull the 5th fuse in the fuse box driver side dash. And put it back in the fuse is fine isn't blown I just have to take it out and put it back in to reset a relay? I'm not sure what I need to replace. Could It be the 4wd control.module? Located behind the radio on the left. That's a 200 dollar component. I don't wanna buy it and that not be it.. any ideas? Or am I on the right track? Open to advice.