The Ignition Switch of the Nissan Pathfinder directs battery power to different circuits as per the driver's key position selected. When the right key is inserted and the switch is turned to the start position, current is supplied to the starter and to fuel injection and ignition circuits to crank the engine. When you start the engine and the switch is in the on position, power continues to be supplied to the engine management and electrical components. Acc is where the radio, power windows, and other components are on, but the engine is not running. The switch position off or lock prevents power to the ignition and allows removal of the key. In the lock position, the steering shaft is mechanically immobilized, and on automatic models, the gear selector is locked in the park position for safety. A coded key system is enhanced further by electronic verification that prevents engine starting unless the computer accepts the signal from the chip. Correct functioning of this Ignition Switch ensures that lighting, climate, and infotainment systems in the Nissan Pathfinder operate reliably. A worn Ignition Switch may cause hard turning of the key, loss of component power, and stalling of the vehicle. Nissan Pathfinder having problems is a sign that the Ignition Switch is not routing power properly. Every unit of Nissan Pathfinder uses an Ignition Switch that combines mechanical key rotation in start, on, acc, and lock functions.
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