Electric Power Steering (Eps); Introduction; Major Changes - Subaru Legacy 2015 Technicians Reference Booklet

2015 Legacy and Outback

Electric Power Steering (EPS)

Introduction

An enhanced Electric Power Steering (EPS) system has been adopted for the 2015 Legacy and
Outback. This design is similar to 2012 Impreza and 2014 Forester models. In addition to a more
accurate and natural steering feel, the adoption of EPS provides a 2 percent improvement in fuel
efficiency over the current hydraulic system.

Major Changes

The EPS system on the 2015 Legacy and Outback features the following differences:
– The EPS Control Unit and Gear Box are now combined into a single assembly.
– The U, V, and W Motor Windings and the Resolver Sensor connections are provided
directly within the Control Unit.
– The Torque Sensor has been changed to a Flux Ring style sensor.
2015 Legacy and Outback Steering Rack
2015 Legacy/Outback
ECU
Impreza/Forester
ECU
EPS Comparison
New Technology Training
9-1
142
(Module 926)
9-2
June 2014