I want to clear the fault code manually.
On troblshooting on my diagnostic scanner,it asked me remove the fuse ECU "B" for 10 seconds or more to clear the fault code.

my question is,what is "B" supposed to mean?

sorry if the question is too basic,I am really new with hands on car experience..

 

Just remove the battery negative for a minute or so. It'll reset more than just the fault, but it'll accomplish the same thing. You'll need to retrain your windows and the car will have to relearn your driving, but better to be done with it.