Just bought a battered 2006 Gen 2, my first Prius. Battery was replaced in 2023, but has some body damage and engine is misfiring. First thing I think I need is an appropriate scan tool.
Read post #1 and then scroll down to post #37 in this thread, https://priuschat.com/index.php?posts/3246758 You want to choose a scanner that can communicate with all the ECUs in the car. I recommend the Autel AP200. It costs about $60 on Amazon.