ABS is coming on at low speeds?

We're using a Bosch program on the laptop in real time it showed the right front seanr was weak so I got new one fixed it thanks for the help

Well, I didn't see this 1 coming. Haven't done the rotors yet because after driving it on Wednesday and it sure felt like the problem was in the rear. So I pulled the drums of, and after comparing the hardware side to side, realized one of the springs, well both of these retaining springs were the same. So went to the store where I got them and wanted to look at a new hardware pkg. And sure enough they were the same. This is wrong because with them both the same, its hitting the emergency brake and causing it to bind up, which made the cable bind up and push the retainer thru the backing plate and binding everything up. So I think its safe to say that this was the problem all along, I hope. Had to go to work after discovering this and got snowed in in fair play, wait for my ride. Lol. But I had to bend the 1 spring around so it was a mirror to the other 1 and now it doesn't interfere with anything. Things you don't expect. Now I need a new emergency brake cable and then will know. Will keep you posted. Thanks.

After the deal with the emergency brake, yes I think I still have warped rotors. We got a couple feet of snow here and have not been working on the truck. I will let you know bout the rotors.