Where are coils 3 and 6 on Toyota Sienna?

On a Toyota Sienna, coil 3 is located on the passenger side of the engine, while coil 6 is found on the driver’s side. The coils are part of the ignition system, situated on top of the engine cylinders. For precise identification, it’s advisable to consult a repair manual or reference diagram specific to the Sienna model year.