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System Description: Actuator: Notes

The actuator contains:

An electric motor and pump
Two relays
Eight solenoid valves, each inlet and outlet for
- LH front
- RH front
- LH rear
- RH rear

Fig 1: Identifying ABS Actuator

Courtesy of NISSAN MOTOR CO., U.S.A.

These components control the hydraulic circuit. The ABS control unit directs the actuator to increase, hold or decrease hydraulic pressure to all or individual wheels.