Suzuki SX4 (RW415/RW416) Electric Power steering Motor Assembly Wiring Guide (E61)

Suzuki SX4 (RW415/RW416) Electric Power steering Motor Assembly Wiring Guide (E61) (48580-79J50)

Suzuki SX4 (RW415/RW416)

Electric Power steering Motor Assembly Wiring Guide: DIY Pinout Diagram

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What is:The Electric Power Steering Motor Assembly is an electric motor unit that provides the necessary assistive torque to help the driver turn the steering wheel more easily. It works together with sensors and an electronic control unit (ECU).


Electric Power steering Motor Assembly – Most Common in Suzuki SX4 (RW415/RW416)

Suzuki SX4 Electric Power Steering Motor Assembly (48580-79J50) – Full Unit View

Suzuki SX4 Electric Power Steering Motor Assembly (48580-79J50) – Full Unit View

Suzuki SX4 Electric Power Steering Motor 48580-79J50 label and part number

Suzuki SX4 Electric Power Steering Motor 48580-79J50 label and part number

Suzuki SX4 Electric Power Steering Motor Assembly (48580-79J50) – Full View

Suzuki SX4 Electric Power Steering Motor Assembly (48580-79J50) – Full View

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1. Introduction

The Suzuki SX4 (RW415/RW416) Electric Power Steering (EPS) Motor Assembly (Part No. 48580-79J50) is an advanced unit designed to provide smooth and efficient steering assistance. This assembly integrates an electric motor, torque sensor, and control module, working together to deliver variable steering support based on vehicle speed and driver input. Unlike hydraulic systems, it operates without power steering fluid, improving fuel efficiency and reducing maintenance. The EPS motor assists the steering column directly, ensuring precise control, reduced steering effort, and enhanced driving comfort. It plays a crucial role in overall vehicle safety and handling stability.



  • Related parts and Accessories
    • EPS Control Module (ECU) – Processes steering input and controls motor assist levels.
    • Torque Sensor – Detects driver’s steering effort and direction.
    • Steering Column Assembly– Connects the steering wheel to the EPS motor and rack.
    • Steering Shaft (Intermediate Shaft) – Transfers torque between the wheel and EPS unit.
    • Steering Angle Sensor – Monitors wheel rotation angle for precise control.
    • Power Supply Wiring Harness – Delivers electrical power and signals to the EPS system.
    • Fusible Link / EPS Relay – Protects the motor and control circuit from electrical overload.


    • 2. Electric Power steering Motor Assembly Wiring Diagram & Pinout


    A. Connector Location

    • Electric Power steering Motor Assembly Mounting Location: On the steering rack housing, in the engine bay.
    • Connector Type:
      • E61 (2 pin) Dark Gray housing

    B. Wiring Table

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