Altho I know somebody posted this before, I can’t find it, I don’t think the search works very good on the new PC. so, could somebody please spell it out again. THANK YOU.
Iv done this on all of my Prii, the problem is the really only usable info is the 12 V battery level. Of course my multimeters will provide this but it’s good to compare. I only remember turning lights off/on 3 times, ?????
Nearly all of the ECU-controlled systems on the Prius and Prius Prime have self-diagnostic capabilities, but most require a Toyota Techstream diagnostic system, or at least an OBD II-compatible scan tool, to see anything more than a warning light or message on the multi-information display. I’ve posted about some exceptions, like the air conditioning system: Air conditioning problem on recirculation (See Post #7) | PriusChat and the navigation system: Gen 4 Prius "Maintenance" mode | PriusChat
