Brake Fluid Level Sensor/Switch: Description and Operation

BRAKE MASTER CYLINDER RESERVOIR:
^ Is mounted to the brake master cylinder.
^ Holds fluid supply for each brake master cylinder hydraulic piston.
^ Provides visual fluid level markings.
^ Contains the brake master cylinder fluid level switch.

BRAKE FLUID LEVEL SWITCH - The brake master cylinder has a brake master cylinder reservoir, brake master cylinder fluid control valve, and a brake fluid level indicator, combined in one assembly. The fluid level indicator:
^ Replaces pressure differential valve used previously.
^ Is located inside brake master cylinder reservoir.
^ Activates brake warning indicator whenever fluid level is low.