SLX V6-3.2L SOHC (1996)
Brake Proportioning/Combination Valve: Description and Operation
Combination Valve
The combination valve contains two separate sections, each serving a different function. The proportioning section of the combination valve
proportions outlet pressure to the rear brakes after a predetermined rear input pressure has been reached. This is done to prevent rear wheel
lock-up on vehicles with light rear wheel loads.
The valve has a ``bypass'' feature which assures full system pressure to the rear brakes, in the event of a front brake system malfunction, also full
front pressure is retained in the event of rear malfunction.
The pressure differential warning switch is designed to constantly compare front and rear brake pressure from the master cylinder and turn on the
brake system warning light on the instrument panel, in the event of a front or rear system malfunction. The valve and switch are designed to the
switch will latch in the ``warning'' position once a malfunction has occurred. The only way the light can be turned off is to repair the malfunction
and apply a pedal force required to develop line pressure.
