I have searched the forums pretty well and have not found anyone else with the exact same problem, so here goes.
2002 Z-71 Tahoe
My driver's side power door lock does not work at all. It will not lock/unlock any of the doors. No movement at all. The passenger side will lock/unlock all of the doors except the driver's side. When I put it in drive all doors except the drivers will lock and when put it in park all doors will unlock except driver's door. No movement at all. Also, the power mirrors do not work. All windows work fine from all doors.
I have checked all the fuses I know to check in the door jam and under the hood. Didn't appear to be any related fuses under the dash.
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Are you getting 12V to the switch. Sometimes one or more of the wires w/ break where it passes from the body to the door. If you are getting 12V to the switch, then you need to jumper 12V to the lock solenoid to see if it's working.
2010 Sheer Silver Tahoe LTZ (all options but sunroof, power boards), GM (body color flaps, rear console, 3rd row mat, 2-Way Remote, chrome gas door, Esky rack), Eagle Eye LED tails, SLP dual tip exhaust, Silver bow-ties/rear wiper, Catch-All mats, AlphaTherm washer fluid heater, Putco chrome mirror covers, silver calipers, board chrome trim, tint, GMPP Major Guard
I kinda had the same problem with my 2001 Tahoe. My passenger rear didn't lock/unlock. The locking relaywas getting power but something was preventing the actual rod to lock the door. I pulled off the door paneland checked out the switch which was fine. The actual door rod was broken near the latch and had to be replaced. It was a pita!