DODGE ABS LIGHT

Hi, I Have The Truck Listed Above 2500 Cummins 24v 4wd. I Have A Problem With Abs Lights On With Park. I Have Changed All The Master...

My Brake / Abs Light Comes On Moments After Starting To Move And Stays On. Brakes Work As Normal With No Problems. Have Had Fluid Level...

My Abs Light Came On While Driving Down The Road Any Sugestions On What The Problem Might Be And How To Correct It. Thanks