Pressure Differential Switch
- Connect one end of a vinyl tube to front brake bleeder screw and place other end in a container half-filled with clean brake fluid. Loosen bleeder screw. Turn ignition switch to ON position and ensure ABS warning light flashes then goes off.
- Depress brake pedal several times and ensure ABS warning light illuminates, because pressure differential switch is on.
NOTE:
One person should hold vinyl tube to prevent tube from being disconnected when brake pedal is depressed.