Eps Troubleshooting (Using Digital Wrench®) - Polaris Sportsman XP 1000 S 2020 Service Manual
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Also See for Sportsman XP 1000 S 2020:
- Owner's manual for maintenance and safety (154 pages)
Table of Contents
EPS TROUBLESHOOTING (USING DIGITAL WRENCH®)
Troubleshooting
Procedure Advises
Digital Wrench
↓
Connect Digital Wrench
to Diagnostic Connector
↓
→
Turn key to "On"Position
• Position Encoder Error
• EPS Software Error
• Steering Torque Sensor Full Failure
• Steering Excessive Current Error*
• Steering Over Current Shutdown*
• Phase Sensing Over Current
*These Error Codes must have multiple occurrences or you must be able to duplicate the condition before replacing
the EPS unit.
• EPS Inverter Temperature Test
1. Verify that the Power Steering module heat sink surface (top
surface) is clean and free of mud and dirt. Make a note of how
much debris was on heat sink before cleaning. Record all power
steering error codes. EPS inverter temperature can be monitored
through Digital Wrench.
2. Allow vehicle to set and cool for at least 2 hours.
3. Drive vehicle for 30 minutes of left and right turning and then
connect to Digital Wrench and read Power Steering Error Codes.
If inverter temperature error code is present, replace Power
Steering Module. If error is not present, Module is OK. EPS
inverter temperature can be checked using Digital Wrench.
9931493 R03 - 2020-2021 Sportsman XP 1000 S Service Manual
© Copyright Polaris Inc.
Is Digital Wrench able to
→
establish a connection to
EPS?
↓
Yes
Follow Digital Wrench
instructions
↓
Replace Power Steering
Module if any of the Error
codes are present from
Table 1.
Perform further testing if
Error Codes are present
from Table 2.
TABLE 1
• Phase Sensing Excessive Current
• Torque Sensor Range
• Rotor Encoder Communication
• Rotor Encoder Variance
• SEPIC Voltage Low/High
• EEPROM Failure
TABLE 2
• Battery Voltage Over / Under Test
• Calibration Error - Reflash EPS Unit
GENERAL INFORMATION
→
→
No
Trace/Repair CAN bus
←
wiring and ignition power
No
wires
1. Disconnect 2 pin power connector to EPS and verify battery
voltage (12-14 VDC) is present on pins with key on. If voltage is
low, investigate and correct cause. If voltage at pins is correct,
cheak all connections for corrosion, damage, and tightness.
Check pin 3 on 8 pin connector for 12V signal with key on.
1
Check wire harness for
damaged/shorted CAN
bus wires. Repair or
replace harness if
necessary
↓
Is DW able to establish a
connection to the ECM?
↓
Yes
Replace EPS
1.69
Chapters
Table of Contents
Troubleshooting
