ANTILOCK BRAKE SYSTEM
04–13–3
04–13
ABS HU/CM CONSTRUCTION
E5U041343750N01
• A high reliability, reduced size and weight ABS
HU/CM, integrating both the ABS HU and ABS
CM, has been adopted.
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ABS HU PART FUNCTION
E5U041343750N02
• The ABS HU adjusts the fluid pressure to the caliper pistons by controlling (on/off) each solenoid valve and
pump motor according to signals from the ABS CM.
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ABS HU PART CONSTRUCTION/OPERATION
E5U041343750N03
Construction
• The ABS HU mainly consists of the inlet/outlet solenoid valves, pump motor (pump) and reservoir.
Function of main component Parts
E5U413ZS5002
Part name Function
Inlet solenoid valve • Adjusts the fluid pressure in each brake system according to ABS CM signals.
Outlet solenoid valve • Adjusts the fluid pressure in each brake system according to ABS CM signals.
Reservoir
• Temporarily stores the brake fluid from the caliper piston to ensure smooth
pressure reduction.
Pump • Returns brake fluid stored in the reserve back to the master cylinder.
Pump motor • Operates the pump according to ABS CM signals.
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