Nissan Sentra Ignition Lock Cylinder provides the keyed interface that enables the driver to energize electrical circuits and start the engine with the use of a key. By inserting and turning the matched key within the Ignition Lock Cylinder, mechanical tumblers align. This allows the internal cam to turn the steering column ignition switch found on every Nissan Sentra with a conventional key system, a feature standard on Sentra models. The Ignition Lock Cylinder and switch combine to send battery power to the starter, ignition, fuel injection, or component circuits as the switch cycles through start, on, acc, off, and lock positions. When the steering shaft is locked, the key can be removed and the shift interlock keeps an automatic Nissan transmission in park to discourage both theft and accidental movement. The effective operation of Nissan electrical and engine systems only occurs upon sensing the correct coded key and the efficient movement of the key in the cylinder has been made possible by a well maintained Ignition Lock Cylinder. Inside the Ignition Lock Cylinder, wear or damage to the key can lead to hard turning, loss of components, stalling, or no start symptoms on any Sentra.
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