April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Description: Description

The EPS system controls the power steering solenoid valve with 4WAS main control unit.
The power steering solenoid valve control changes the power steering solenoid valve activation voltage according to the vehicle speed.

Fig 1: Solenoid Valve Voltage And Vehicle Speed Graph

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