FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Principle of Operation

Principle of operation





1. Standard braking (Non-ABS braking)
When the brake pedal is depressed, the power brake unit closes the central valve of the master cylinder and generates pressure on the brake hydraulic pressure line. This opens the solenoid inlet valve and closes the outlet valve and transmits hydraulic pressure from the master cylinder to the wheel cylinders.