Abs/brake light on 2010 Dodge 3500

[Axm900]

Abs and brake light came on while driving. Code reader shows rear wheel speed sensor erratic reading. I installed a new one, checked the plug and wires. All looked ok. Cranked the truck and lights still on. I cleared the lights and drove it about a mile and lights came back on. Code still reading the same thing. Does anyone else know what to do or check?

 

[Bob4x4]

Ck wiring,connectors and pull sensor to check for contamination or physical damage. Beyond that you will need specialized equipment