1.98
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
STEERING / SUSPENSION
DIAGNOSTICS
EPS TROUBLESHOOTING (POWER STEERING NON-FUNCTIONAL WITH MIL ON)
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 ON
↓
Cycle the ignition switch. Is MIL on?
→
No
There is no issue. MIL on due to 5-minute
timeout. Verify code using Digital Wrench.
No
↓
Is Battery Voltage >11 and <16VDC?
→
No
Determine cause of incorrect battery voltage and
repair
Yes
↓
Is EPS Fuse OK?
→
No
Replace EPS Fuse.
Yes
↓
12 VDC and GND across 2 Pin EPS Connector
with Key On?
→
No
Check EPS Power Relay and Circuit
Yes
↓
12 VDC on Pin 3 of the 8 pin EPS Connector?
→
No
Check wiring from Connector to Ignition Switch
Circuit
Yes
↓
Begin Digital Wrench EPS Troubleshooting
Procedure
GENERAL INFORMATION
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