All Doors Fail To Unlock From One Switch

Lower driver's window. Operate power door lock switch or door cylinder lock switch to unlock position. If door will not unlock using power door lock switch, replace power door lock switch. See POWER DOOR LOCK SWITCH  under REMOVAL & INSTALLATION. If door will not unlock using door cylinder lock switch, replace door cylinder lock switch. See DOOR CYLINDER LOCK SWITCH  under REMOVAL & INSTALLATION. If door will unlock using power door lock switch and door cylinder lock switch, problem is intermittent. Visually inspect and wiggle test related wiring.