Wife's 2017 Rav 4 just started throwing codes this morning. ABS, AWD, lane departure, pre-collision, blind spot management. No obvious wire problems under hood, but the furry bastages have certainly been having their way with the insulation on the underside of the hood.
Does anyone have a handle on where to start digging?
No problems on 2008 Tacoma in same driveway.
Sounds like you have quite a bit of damage.
Unless you have automotive electrician chops, I'd take it in.
Probably a main harness replacement in your future.
Cost $5000 to fix my Tacoma.
Toyota doesn't allow splicing, so it's a complete harness replacement.