06 z71 tahoe power seat issue

[98hoe99sub]

My drivers side power seat and both drivers and passenger side heated seats have quit working yet the passenger side power seat still moves. I've tried everything that I can find online to narrow in on the problem and nothing. Driver's seat is all the way back so I can't get at the last bolt to pull the seat out. Any suggestions or tips??? Thanks

 

[Mr. 960]

can you reach under the seat and unplug the harness and run direct power to it? What happens? I know with the full power seats there will be a million wires. Just look for a black wire and a red or orange one.