FIXED! Final update
The root cause for me was the sunroof drains being clogged and sending water into the headliner, and because I have to park on an incline the water ran down the headliner to the C pillar and down into the wiring harness I posted earlier.
DadBandBass if you have a sunroof...
Was it the rear hatch window or the rear door window?
I gave up and brought my 4Runner to a trusted shop near me and after following wires and running pin tests they found water damage just like yours. Mine was at a junction block under the driver's side rear quarter trim (images below). The...
Some other weird things started happening like the driver side window being able to be controlled while the car was off and others. Decided to replace the Body ECU. It's a part of the interior fuse panel so I bought a donor part of eBay and installed it earlier today. Everything seems to work...
I read that too. Started pulling the boots and tracing it back to where those wires connect under the headliner and all of it was new because of the rear hatch replacement. Maybe something's pinched but since it's all brand new I didn't feel like cutting into the boots.
DadBandBass I'm going through the same thing on my 2008 SR5. I was rear ended in May and had national body shop chain replace the entire back hatch. Everything was fine for a few months then the rear wiper started intermittently turning on when the car was fully off, exactly how you were...
