Brought the car to be checked for the brake issue.

Pedal seems like abs kicks in when stopping but not always.

The diag showed a rear hub sensor???

Is that the little wire that has 1 bolt holding it?

doesn't seem to hard of a replacement.

??

ap

 

That sounds like it, one bolt to undo, one plug to undo, twist and pull out, it is a small electro magnetic sensor. Now as all the best manuals say, replacement is a reversal of removal.
As long as nothing is seized up or shears off, the hardest part is jacking up and removing the road wheel.

 

The sensors do not often fail, but may need cleaning. The connecting cable does fail more often due to flexing.

 

Is there a ring on the axle that the sensor reads if so check it .

 

No, just an axel wheel-gear.