There's no "Bank One" on a 2006 Dodge Charger in the way you might be thinking. "Bank 1" and "Bank 2" refer to the arrangement of cylinders in the engine's cylinder head. They describe the location of oxygen sensors and other components related to the engine's emissions control and fuel delivery system.
To find the location of specific sensors, you'll need a repair manual specific to your 2006 Dodge Charger's engine (e.g., a 2.7L V6, 3.5L V6, 5.7L Hemi, or 6.1L Hemi). These manuals will have diagrams showing the precise location of Bank 1 and Bank 2 oxygen sensors and other components.
