i unhooked the batteries the reset the computer and when i went to start my truck the light went off then right back on so im wondering if its an electrical problem but its only rear wheel abs not 4 wheel abs

 

It cleared mine when I first got my Ram, but it would come back very quickly. My problem ended up being a bad wire connection at PCM. Don't remember which connector. Electrical schematic will show it. It also effected my speedometer.

 

since this thread seems to pop up a lot, is there any way us non certified mechanics can get a pic of what we are supposed to be looking for as far as sensors and what not?

and by pic i mean a real one from under the truck and not a 3d hand drawn google image