ABS Description and Operation: Notes

Fig 1: ABS System Diagram

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Reservoir
2	Master Cylinder
3	High Pressure Accumulator
4	Normally Open Valve
5	Normally Closed Valve
6	Left Front
7	Right Rear
8	Pump
9	Low Pressure Accumulator
10	Left Rear
11	Right Front

The purpose of the MGH-25 antilock brake system (ABS) is to minimize wheel slip during heavy braking. MGH-25 performs this function by monitoring the speed of each wheel and controlling the brake fluid pressure to each wheel independently during a braking event. This allows the driver to retain directional stability and better steering capability.