Know its been years ago since you posted. I am finally having that issues with my 2010 Tundra, Drivers door locks and unlocks, all others 3 will lock (with door switches and remote) but will not Unlock, via the remote or the door buttons. and i even had the actuators replaced so know that is all good. Did you ever solve that problem with yours..I wouuld love to know. My 2007 has 150k and no issues. My Sequoia has half the miles and 3 of 4 are out. I have replaced all motors as of today and the problem is still there. I can lock all doors but unlock only the drivers door This is too weird. Cn anyone help out with a schematic?