Electronic Power Steering (Eps); Eps Operation - Polaris Sportsman XP 1000 S 2020 Service Manual

ELECTRONIC POWER STEERING (EPS)

EPS OPERATION

The EPS module is an intelligent electronic power
steering system that operates off of the vehicle's 12V
electrical system. It calculates steering assist by sensing
the difference between the input torque of the steering
post and the output torque required to turn the wheels,
and then provides assist by energizing an electric motor.
The process provides a smooth, seamless assist.
The system is continuously running diagnostic checks
and monitoring factors such as battery voltage, ground
speed and engine speed. In the event an internal or
external issue that affects the EPS system is detected,
the system will illuminate a fault indicator and transition
to a normal mechanically coupled steering system. The
system is Polaris Digital Wrench compatible for simplified
diagnostics and system troubleshooting through the
vehicle's diagnostic port.
With the engine off and the key on, the power steering
unit will operate for up to five minutes. After the five
minutes, you will need to cycle the key switch and restart
the engine to regain power steering operation.
If the power steering 30A fuse fails, the power steering
Malfunction Indicator Light (MIL) on the instrument
cluster will illuminate. During this time, the vehicle will
have no power steering operation. You will be able to
connect and communicate with the vehicle's Engine
Controller, but not the Power Steering Controller, while
using Digital Wrench™.
IMPORTANT
DO NOT SPLICE OR CUT INTO THE CAN CIRCUITS.
IMPORTANT
Electronic Power Steering (EPS) units are not
interchangeable between ATV and RANGER product
lines.
NOTICE
See the Steering / Suspension chapter for EPS unit
removal and installation procedures.
WIRE COLOR FUNCTION
Key-On / Run Switch On
ORANGE
Battery Voltage / EPS Power
Battery Voltage
RED
BROWN Ground
CAN High Signal
YELLOW
CAN Low Signal
GREEN
9931493 R03 - 2020-2021 Sportsman XP 1000 S Service Manual
© Copyright Polaris Inc.
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