I've attached a picture step below showing oxygen sensor replacement for your as well as pictures of the Bank 1 oxygen sensors on your Caravan. The sensor I've circled in red is the Bank 1 sensor 1 you want to change. The sensor I've circled in blue is the Bank1 sensor 2 downstream sensor. Hope this helps and thanks for using 2CarPros.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.