Originally Posted by KyDan
My Prodigy brake controller came with a warning that activating the
emergency brake switch while plugged in would fry the controller.
Hopefully you just blew a fuse somewhere.
No idea what was causing your hit and miss fault but pulling the emergency
brake cable while plugged in is a no-no.
Note, I am using a Prodigy after market controller.
Have been for nearly 8 years.
Apparently brake controllers that come with new trucks aren't as prone
to self destructing!!
I should have said "pulling the brake switch while plugged in -might-
fry the controller." Read your manual.
Hope you find your problem!!