After reading the manual, it looks like I might have triggered the config flash sequence bc I got 4 sets of codes not 2. And since it also does a self reset, it seems that its just about automatic you have to drive it to determine if the code might have returned.
I drive a workhorse. gave up on the ABS. (I'm not kidding)
Remember folks,,, ABS did not really become common till about the 1990s. As people get more and more stupid, Vehicles have to get smarter and smarter to make up for it... I learned to drive long time before ABS.
Ah, yes, but ability to modulate locking on a single wheel is not something even superman can accomplish on a vehicle (any vehicle - with hyd or airbrakes) without sometype of wheel sensor. Especially if one wheel has different friction than the others (such as different surface or slightly damp). For one, the system wont feed back the info to you fast enough let alone let you be able to just back off for just that one wheel.
Knowing how to do things old school is good, but there are somethings modern tech provides that just can't be denied - like fuel injection..