The power steering pressure switch on a 2001 Dodge Ram 1500, 2500, or 3500 is located on the
power steering pump. It's usually a small, electrically-connected switch mounted directly on the pump itself. You'll need to look closely at the pump; the switch is relatively small and may be hard to see depending on the condition of the engine bay.
Because there are variations between engine types and configurations, a picture of your specific power steering pump would be helpful for pinpointing it exactly if you have difficulty locating it visually.
