A WIRE ON THE LF BRAKE HAD PULLED OUT. REATTACHED THE WIRE AND BRAKES WORKED AGAIN AND IT CLEARED THE FAULT CODE ON THE TRUCK.
ADJUSTED THE FRONT AXLE BRAKES.
TRIED TO ADJUST THE REAR AXLE BRAKE BUT THE ADJUSTORS ARE RUSTED FAST AND WON'T MOVE.  YOU WILL NEED TO REPLACE BRAKES TO GET FULL BRAKING POWER BACK.