Direct Replacement: The 90919-02244 is a direct replacement for the original ignition coil in compatible Toyota and Scion models. It fits various vehicles, including the Scion tC, Scion xB, Toyota Camry, Toyota Corolla XRS, Toyota Highlander, Toyota Matrix, and Toyota RAV4, among others1.Ignition Coil: This component converts low-voltage electrical power from the battery into high-voltage energy needed to create a spark at the spark plugs. The spark ignites the air-fuel mixture in the combustion chamber, allowing the engine to start and run smoothly.