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Infiniti
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2008
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G37 Journey
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Repair and Diagnosis
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Steering
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Power Steering
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Steering Control System (With 4WAS)
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Function Diagnosis
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EPS System
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System Description
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Description
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
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 Graph
Courtesy of NISSAN MOTOR CO., U.S.A.