The Lexus ES350 Ignition Switch provides drivers with the control of starting, stopping, and powering components with one simple motion. Early Lexus ES350 sedans had a column-mounted Ignition Switch that only worked when the correct metal Ignition Switch key was turned to ACC, ON, or START, connecting battery current to starter, fuel injection, and component circuits. To deter people from stealing the car, Lexus later added a coded key; its chip communicates with the computer to only crank the engine when the code matches, thwarting hot wiring that had defeated a basic switch. Recent ES350 generations replace the mechanical lock with a push-button Ignition Switch that pairs with a pocket-sized fob, or the car knows that the fob is there, that the shifter is stationary in Park, and then the engine is fired up with the pushing of the brake. Today, every ES350 also allows components to run without the engine by tapping the button once. This evolution of the switch means that each style of the Ignition Switch has the same goal and purpose, but the keyed design can jam and the Ignition Switch contacts can wear while the electronic button has fewer moving parts, boosts reliability, and provides quicker starts for proud Lexus drivers.
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