Cant tell if wheel speed sensor, voltage or transfer case issue

Hello everybody, I have a weird issue with my 2014 Tundra and I'm not sure it's safe to drive.

At startup I get "ABS" and Traction control lit up, then after putting into drive and rolling for 5 seconds I hear a pulsing grinding/clicking sound and can feel it through the pedal (louder and faster as I speed up). The ABS is active and I begin sliding if I try to brake, also at higher speeds around 40mph.
Then around 10 seconds/a minute later the grinding/clicking stops, the dash lights disappear and I can brake normally. BUT immediately after it clears, the dash throws ABS, Traction Control, and 4hi 4lo blinking. This points to a transfer case shift failure, but i'm not entirely sure that's the issue, I haven't shifted to out of 2 wheel drive for over a year. Maybe voltage or wheel speed sensor issue.

A week or two before this started happening, I went through the car wash and my left blinker intermittently hyperflashed for a few weeks, then started working fine again on its own. That's when the ABS, Trac Control and 4lo/4hi started blinking.

I did always get an ABS feeling through the pedal from the front passenger tire while making a somewhat fast/hard right turn, years before the dash lit up.

I basically leave to/from work and pray that my brakes stop "sliding" before I actually need to brake. Sometimes it takes a couple seconds, sometimes it takes around 1 minute. I'm contemplating pulling the ABS fuse(s) before driving again. also, I do have a scanner coming in the mail soon.

Hopefully this makes sense to somebody, I'd like to hear your thoughts. Thanks fellas.

 

Check if your ABS wires have not been damaged or chewed through by rodents. There are sensors at each wheel.

 

I crawled under and the wiring and sleeves look great to all 4 wheels. No pinch points or damage from what I could tell.

Reminds me of a time when I popped my hood (on another vehicle) to find a large rat eating an old breakfast burrito that it dragged on top of the engine, along with some wiring it was making its new home with.

 

I'd probably try replacing that front passenger sensor then. Pick off the low (cost) hanging fruit.