Wheel Speed Cable came loose and is now worn down

2019 Taco had the following faults pop up today and found my drivers side from wheel speed sensor worn?

Pre-collision system malfunction
ABS system malfunction
Blind spot monitor system malfunction
Cruise control not available

Do I need to buy the whole harness or can I just buy this specific section of wiring somewhere?

 

I believe the wiring is only available as a harness, but that doesn't look too terrible and if you're patient and have a good hand, you should be able to splice it. I would strongly recommend using good double-wall, adhesive lined ("marine") heat shrink over the entire splice with overlaps, and then two more sections covering each end of the splice.

 

You can splice in another positive and negative wiring to repair it just fine. Make sure that your replacement wiring is "twisted pair".