the rear brakes on my 2002 dakota 2wd 4.7 MPI. i think it an ABS module, but am not sure.also, my wheels lock up under hard braking at times, ABS does not work

 

you may only have rear wheel abs. check the ABS module and see if it is connected. common problem is the rear speed sensor located on the top of the rear diff. Pull it out, if it has metal shavings on it, flush the rear diff and replace the sensor.my RWABS doesnt work and since its mainly for towing trailers, I just disconnected the module so I dont have to stare at the light.