12.58
9850067 R01 - 2020-2021
GENERAL
/
GENERAL XP
Service Manual
© Copyright Polaris Inc.
CHARGING SYSTEM TESTING
Whenever charging system problems are suspected, proceed with the following system check after verifying that all
wires are in good condition, connected and not exposed or pinched.
Using a multitester, set on D.C. volts, measure the
battery open circuit voltage (test with lights and
accessories off). It should be 12.4 volts or more.
Is it?
→
No
Remove the battery and properly service.
Reinstall the fully charged battery or fully charged
shop battery.
Yes
↓
Meter Setting: DC Volts
With the transmission in park, start the engine and
increase the RPM to between 3000 and 4000.
Read the battery voltage with the multimeter.
Readings should start to increase between 13.0 V
D.C. and 14.6 V D.C. Do they?
NOTE: Disconnect all accessories.
→
Yes
Check Key off current draw.
No
↓
Meter Setting: DC Volts
Perform system
Break Even Amperage
test
outlined in this chapter. Does charging occur as
specified?
→
Yes
Check for owner modification, and discuss
operating habits. The battery will continually
discharge if operated below the “Break Even”
RPM. Continued problems would call for battery
inspection.
No
↓
Ohm stator wires, if bad replace stator, if good,
continue with alternator output test.
Meter Setting: AC Volts
Disconnect the Yellow wires from the regulator /
rectifier. Using a multimeter, perform an
Alternator Output Test
. See the test procedure
detailed in this chapter. Does output meet
specification?
→
No
Inspect the wiring harness between the regulator
and the stator for damage. If no damage is found,
remove the stator cover. Inspect the flywheel
magnets, stator coils, and stator wires for
damage. Repair or replace any damaged
components.
Yes
↓
Meter Setting: DC Volts
Reconnect the alternator wires. Measure between
the Red and Black terminals with the harness
disconnected. Battery voltage must be present on
on harness side of voltage regulator connector. Is
voltage present?
→
No
Check battery and battery connections. Also
check wire connections and wire condition. Repair
or replace faulty wiring or components.
Yes
↓
If all the previous tests indicate a good condition,
but the charging voltage does not rise above
battery voltage at the connector or wire harness,
replace the voltage regulator.
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