I was driving today all sudden my abs traction control light come on, scanned it p0045 only code its pulling I hooked it up to scan tool read the speed sensors its reading left rear sensor at all mph, was reading same on all 4 sensors never did not read it. I can clear code just come back instantly. I can drive at times will go off for bit them randomly come back on/off. is there any other way to test the sensor. How do I know for sure if my sensor bad I hate replace the hub and not the problem...

 

p0045 is "Turbo/Supercharger Boost Control A Circuit Open"

 

typo c0045

 

https://www.engine-codes.com/c0045_chevrolet.html

I would start by inspecting the sensor