K 1500 Suburban 4WD V8-5.7L VIN R (1997)
Hydraulic Control Assembly - Antilock Brakes: Description and Operation
The Brake Pressure Modulator Valve (BPMV) is split into 3 hydraulic channels: right front, left front and rear brakes. Each channel has an isolation
valve and a dump valve. The front channels share a low pressure accumulator, attenuator and pump. The rear channel also has a low pressure
accumulator, attenuator and a pump. The rear brake channel of the BPMV controls both rear wheels simultaneously.
