Electronic break parts on a 2003 C-5 Corvette

( NC)

I have a 2003 C-5 Corvette and I would like to know if there is anyway you can check electronic break parts to see if they are good or bad? Parts like the break fluid sensor, the break differential switch, EBCM, the sensors on the wheels. The reason I am asking is that I was driving the other week and as I was going down the road I noticed lights in my dash on. The active handling light , the park break light, and words going across the bottom of the screen saying low break fluid and that my active handling needs servicing also my service traction needs servicing. I checked the codes and the only code that would apply is C-1247 CH witch is Break pressure differential switch activated.

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