I own a 2004 explorer xlt with the advtrac system. I have a constant traction control light off with an abs light after driving a few hundred feet. I have replaced both front hub assemblies as well as all 4 wheel speed sensors. My local repair shop is out of ideas. Any ideas out there??

 

Is there a sensor on the transfer case that may be causing this issue?

 

You may have a bad "Brake Pressure Switch". It is screwed in directly under the master cylinder.