Scm Mode Switch; Scm Can Diagnostics - Polaris RZR XP Service Manual

SCM MODE SWITCH

Use the following diagnostic list when any of the following are present:
• SPN 516098 FMI 3 or 4
• Stuck in a particular suspension mode
• Mode changes when not requested
1. Verify the switch is properly connected to the vehicle harness. Ensure connection is clean.
2. Measure the voltage between pin 7 (B+) and pin 1 (B-) on the switch connector. You should see battery voltage. If
the voltage is low, check the shock fuse and the continuity of the wiring.
3. Verify continuity between switch connector pin 6 (signal) and SCM pin 34.
4. With the SCM unplugged, measure for short to ground and short to power on the signal wire. They should both
read 0 volts.
5. Replace the switch.
6. Reflash the SCM.

SCM CAN DIAGNOSTICS

Use the following diagnostic list when any of the following trouble codes are present:
• SPN 516116 FMI 9
• SPN 516117 FMI 9
• SPN 516118 FMI 9
• SPN 516120 FMI 9
• SPN 516121 FMI 9
• SPN 516123 FMI 2, 20 or 21
• SPN 516125 FMI 11
• SPN 520572 FMI 2
• SPN 520574 FMI 2
• SPN 524000 FMI 2
• SPN 524114 FMI 2
1. If code SPN 516125 FMI 11 is set, try to connect to Digital Wrench. If Digital Wrench will not connect to the SCM,
check continuity on SCM CAN Hi (pin 14 - yellow) to diagnostic plug (pin H - yellow) as well as SCM CAN Lo (pin
15 - green) to diagnostic plug (pin G - green). If these test ok, reflash SCM.
2. If a TIMEOUT DTC is set (516116/17/18/19), verify proper connections and that the ECU is not damaged. Look for
aftermarket ECU.
3. Is it speed sensor related? Check for speed input on Data Display screen. Possible speed sensor/circuit issue.
Reflash ECU
4. Is it steering related? Perform EPS centering procedure. Reflash EPS
5. If SPN 520572 FMI 2 is present, check brake switch input on data display. ECU pin 135.
6. If SPN 520574 FMI 2 or SPN 524000 FMI 2 is present, reflash ECU.
9929419 R02 - 2018-2019 RZR XP / XP 4 Turbo S Service Manual
© Copyright Polaris Industries Inc.
DIAGNOSTIC
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