Page 38 - Manual_Polaris_RZR

Page 38 - Manual_Polaris_RZR_ProXP-20-21

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GENERAL INFORMATION

NO CRANK NO START OR SLOW CRANK • Using Digital Wrench® verify that the Brake Switch
is changing state from “Active” when the brake is
1. Verify that battery is charged and has ~12.6 V using depressed to “Inactive” when the brake is released.
DMM or battery tester.
• Most vehicles need to see brake being depressed
• Check battery electrolyte level. If low top off battery.
See Maintenance — Electrical and Ignition before vehicle will start. If brake lights do not light
Systems. when brake is depressed, concern may be caused
by brake switch operation.
• Charge battery at recommended rate. See. Attempt
starting after charging. 6. Possible faulty key switch.
• If battery will not reach ~12.6 V could be caused by • Attempt turning key switch on and off multiple
battery draw. Refer to Diagnostic — Electrical times.
Diagnostics.
• Wiggle key switch while turning.
• If battery will not reach ~12.6 V, load test battery. • If vehicle starts, concern may be caused by key
Replace if necessary. Refer to Electrical — Battery switch or connection to switch. Refer to Electrical
Removal / Installation.
Chapter.
2. Verify connections at battery are installed correctly 7. Check for communication with ECU using Digital
and are tight. Wrench®
• If battery terminals are not installed correctly, install • If there is no communications with ECU there may
terminals correctly be a concern with the CAN system or ECU causing
• Make sure terminals are clean of dirt and corrosion. the no start.
If not refer to Maintenance — Battery Maintenance.
8. Concern may be caused by mechanical engine
3. Visually inspect vehicle for any electrical connectors concern.
or wiring that may be loose or damaged. • Refer to Engine Troubleshooting.
• If wiring issues are found, repair as necessary.
Refer to wiring diagrams if needed.
• Check battery ground. Follow Negative (-) Cable
from battery to chassis and make sure connection
is clean and tight.
4. Check connections at starter and starter solenoid.
Refer to Electrical Chapter.
• Make sure connections are clean and tight. If not
repair before further diagnosis.
• Check Positive (+) terminals at starter and solenoid
for available voltage using DMM. Readings should
be ~12.6 V
• With battery disconnected check cables for high
resistance. Reading should be less than 1 Ohm. If
resistance is higher than specification replace
wiring.
• Reconnect battery and perform voltage drop test
on wiring to starter and to starter solenoid. Concern
may still be caused by high resistance in wires
even if resistance is within specification when
disconnected.
• If voltage drop test fails, continue testing to isolate
component that will require replacement (starter /
starter solenoid / wiring). Acceptable voltage drop
during cranking is 0.1 V per connection.

5. Check Brake Switch operation.

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