Section 06-09A: Brake System, Anti-Lock, Rear
1996 F-150, F-250, F-350 Workshop Manual
DESCRIPTION AND OPERATION

Brake Master Cylinder and Brake Fluid Level Switch

The fluid level indicator is an integral part of the brake master cylinder reservoir. It is serviced as a part of the brake master cylinder reservoir. It consists of a float containing a magnet and a reed switch. When the fluid in the brake master cylinder reservoir (2K478) gets to a predetermined level, the magnet actuates the reed switch, causing the red brake warning lamp to light. Loss of fluid from either the primary (front) or secondary (rear) system will cause this system to actuate.

Hydraulic Schematic





ItemPart NumberDescription
12B120Front Disc Brake Caliper (RH)
22078Front Brake Hose (RH)
32261Rear Wheel Cylinder(RH)
42267Rear Brake Tube (RH)
52268Rear Brake Tube (LH)
62262Rear Wheel Cylinder (LH)
72282Rear Brake Hose
82C008RABS Valve Output Tube
92B373RABS Valve
102234RABS Valve Input Tube
112264Front Brake Tube (LH)
122078Front Brake Hose (LH)
132B121Front Disc Brake Caliper (LH)
142263Front Brake Tube (RH)
152140Brake Master Cylinder
162005Power Brake Booster