Charging System Testing Flow Chart - Polaris 2012 RANGER RZR 570 INTL Service Manual

ELECTRICAL

Charging System Testing Flow Chart

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, mea-
sure the battery open circuit voltage (see
Battery Service). It should be 12.4 volts or
more. Is it?
Yes
Meter Setting: DC Volts
With the transmission in Park, start the
engine and increase RPM to between 3000
and 4000. Read battery voltage with the
multimeter. Readings should increase to
between 13.0 and 14.6 V D.C. Do they?
NOTE: Disconnect all accessories.
No
Meter Setting: DC Amps
Perform system "Break Even Amperage"
test outlined in this chapter.
Does charging occur as specified?
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 test procedure on Page 10.22.
Does output meet specification?
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 harness side of voltage regulator.
Is voltage present?
Yes
If all of 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.
10.26
No
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Remove the battery and properly ser-
vice. Reinstall the fully charged battery
No
or a fully charged shop battery.
Yes
Check Key off Current Draw.
Check for owner modification, and
discuss operating habits. The battery
will continually discharge if operated
Yes
below the "Break Even" RPM. Con-
tinued problems would call for battery
inspection.
Inspect the wiring harness between
the regulator and the stator for
damage. If no damage is found,
remove the stator cover.
No
Inspect the flywheel magnets, stator
coils and stator wires for damage.
Repair or replace any damaged
components.
Check battery and battery connections.
Also check wire connections and wire
No
condition. Repair or replace faulty wiring
or components.