When The Abs Fluid Pressure Is Decreasing: Notes

Fig 1: Operation Diagram - ABS Fluid Pressure Decreasing

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

The system closes the inlet solenoid valve to shut the fluid channel from the master cylinder, and opens the outlet solenoid valve to return the brake fluid from the wheel cylinders to the buffer chamber. This causes the wheel cylinder fluid pressure to decrease. Then the system activates the pump motor to return the brake fluid from the buffer chamber to the hydraulic unit reservoir.