Solenoid Valve Body
Fig. 5 Solenoid Valve Block Assembly:
The solenoid valve block assembly, Fig. 5, contains three pairs of solenoid valves, one pair for each front wheel and the third pair for both rear wheels. The paired solenoid valves are inlet and outlet valves, with the inlet valve normally open and the outlet valve normally closed. During ABS operation, the inlet and outlet valves are alternately opened and closed approximately 10 times per second to provide pressure modulation to wheel of impending lockup. The solenoid valve block is bolted to the hydraulic actuation unit, behind the lefthand shock tower.