Programmable lock cylinder assembly with reset actuator aligned with keyway

Disclosed is a programmable lock cylinder assembly including a lock housing having a body defining a tubular opening; a cylinder plug having a body mounted for rotation within the tubular opening, the cylinder plug including a single keyway extending therein; a locking member in the cylinder plug and moveable between a locked position where the cylinder plug is rotationally locked relative to the housing and an unlocked position where the cylinder plug is rotationally moveable relative to the housing. The assembly includes a plurality of pin sets, each pin set having a keyway pin component and a locking pin component and positioned in the cylinder plug such that a portion of each keyway pin component extends across the single keyway. Each keyway pin component is selectively engagable with a respective locking pin component. The assembly also includes a re-combinating member engaged with one of the components of each pin set and moveable between a first position where the keyway pin components are engaged with the locking pin components and a second position where the keyway pin components are disengaged from the locking pin components. The assembly further includes a reset actuator positioned within the cylinder plug with a portion aligned with the single keyway. The reset actuator is moveable between an engaged position where the re-combinating member is locked relative to the cylinder plug and a non-engaged position where the re-combinating member is moveable relative to the cylinder plug. The locking member includes has a sidebar biased radially outward and received in a groove along the lock housing in the locked position. Each locking pin component includes a rotatable toothed gear defining a locking sidebar notch configured to receive the sidebar in the unlocked position.