Toyota today serviced my front deferential so I could shift into Lo 4......nice, works great, now, I have a ABS warning light on. WTF? There is no way I am taking it back to them for more work. What do you think is the problem?

 

wheel sensor or speed sensor abs ring on the axle

 

could of stretched the cable and broke wires inside? happened to me when doin ball joints. just drive around and see if it turns off

 

This is what it sounds like to me. If the tech broke it then they need to fix it. Take it back and tell them what you've posted on here.

 

Yeah x2.

 

Had the repair done at Toyota, the hub, bearings, and ABS sensor had to be replaced. The Bearing was literally in pieces, completely destroyed. $1100.00 boo-boo.
thanks for all your advice and help. I am rolling smooth now.