Section 06-09B: Brake, Anti-Lock, 4-Wheel | 1996 Bronco Workshop Manual |
The brake pressure control valve is an integral part of the brake master cylinder (2140).
The brake pressure control valve regulates the hydraulic pressure in the rear brake system. It is located between the rear brake system's inlet and outlet ports in the main valve. When the brake pedal (2455) is applied, the full brake fluid pressure passes through the brake pressure control valve to the rear brake system until the valve's split point is reached. Above its split point, the brake pressure control valve begins to reduce the hydraulic pressure to the rear brakes, creating a balanced braking condition between the front and rear wheels to minimize rear wheel lockup during hard braking.