My son recently purchased a 2006 Prius and the check engine was on I scanned it for codes and a P0117 had stored (current & pending) I want to circuit check the system but I'm not sure which sensor sets this DTC, first one I encountered was on the drivers lower front side, then I saw some information on replacing one on the back side of the engine (closer to the bulkhead/firewall) I think its the back one since it's part of the ICE system (internal combustion engine) but I want to make sure before I dive into it. Any information on this would be a great help, Thanks
