I have a 2004 Chevrolet Tahoe Z71. The Driver side powered seat has completely stopped working. The heated seats on both driver and passenger sides have stopped working. The powered seats went out a few weeks ago but came back for about a month. I've checked the circuit breaker for the powered seats and the fuse for the heated seats. Both the breaker and fuse are great. I've got voltage at the circuit breaker for the powered seats (7.84v), and the switches for the powered seats have 1v at open with a voltage drop to 0 when I activate the switches. The problem being that the seats don't work although the switches apparently are working. I'm guessing the switch is multiplexed possibly with such low voltage? I've seen from some other posts that there is a common ground with the powered windows at G304, but all powered windows continue to function properly. Only other issue in the vehicle is that the rear wiper motor and washer are also inoperable occasionally, but that is some type of short in the rear hatch wiring harness that passes from the body to the hatch by the lift gate glass.

Does anyone have any ideas? I would appreciate any help. Thank you for taking the time to read this.