Page 76 - Manual_Polaris_RZR_ProXP-20-21

GENERAL INFORMATION

EPS TROUBLESHOOTING (POWER STEERING NON-FUNCTIONAL WITH MIL OFF)

IMPORTANT
READ BEFORE YOU REPLACE THE EPS UNIT!
Verify the EPS unit has the latest software version and calibration loaded before replacing the EPS unit. If not, update
to the latest version for each and follow the guided diagnostic procedure(s) available in Digital Wrench®.

Power
Steering
Non
Functional,
MIL is OFF
↓

Determine
Is Battery → cause of
Voltage >11 incorrect
and battery
<16VDC? No voltage and
repair
Yes↓

→
Is EPS Fuse Replace
OK? EPS Fuse.
No
Yes↓

12 VDC and
GND across → Check EPS
2 Pin EPS Power
Connector No Relay and
with Key Circuit
On?
Yes↓

Check
12 VDC on wiring from
Pin 3 of the → Connector
8 pin EPS to Ignition
Connector? No Switch
Circuit
Yes↓

MIL Lamp
Begin EPS MIL should
Digital turns on come on Trouble-
EPS ←
Instrument
during
Wrench Instrument → during → Cluster EPS → shoot per
briefly
“Non
Trouble- Yes Cluster No Instrument MIL lamp No Functional
shooting Power Up OK? and MIL
Procedure Self Test? Cluster ON”
Power Up.
↑ ← ← ← ↓

1.70 9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.