Polaris Sportsman 700 Efi 2005 Service Manual page 276

ELECTRICAL
TEST 3: Measure AC Voltage Output of Each
Stator Leg at Charging RPM
1. Set the selector dial to measure AC Voltage.
2. Start the engine and let it idle.
3. While holding the ATV at a specified RPM,
separately measure the voltage across each 'leg'
of the stator by connecting the meter leads to the
wires leading from the alternator (Y1 to Y2, Y1 to
Y3, Y2 to Y3).
4. Refer to the table below for approximate Voltage
AC readings according to RPM. Test each leg at
the specified RPM in the table. Example: The
alternator current output reading should be
approximately 18 Vac at 1300 RPM between
each 'leg'.
NOTE: If one or more of the stator leg output AC
voltage varies significantly from the specified value,
the stator may need to be replaced.
ATV RPM
Reading
1300
3000
5000
10.20
AC Voltage (Vac)
Reading
18 Vac ± 25 %
42 Vac ± 25 %
64 Vac ± 25 %
RELAYS
These relays, located next to the ECU, assist with
component operation such as the fan, fuel pump, etc.
The fan relay, controlled by the ECU, operates the fan.
The power relay, controlled by the ECU, turns on
power for components such as the fuel pump,
injectors, etc.
FAN RELAY
RED Fused 20- -amp, unswitched FAN power supply.
YELLOW / BLK Fan 'ON' Command. Ground is supplied by the ECU,
closing the relay to turn on the fan.
RED / WHITE
KEY- -ON Battery power supply, switched on by the key
and LH control switches, enables power to relay.
ORANGE/BLK
Fan power output. 'ON' when the ECU sends a signal
on the Y/BLK wire, closing the relay. Supplies 20- -amp
power for fan operation.
POWER RELAY
KEY- -ON Battery power supply, switched on by the
RED / WHITE
key and LH control switches, enables power to relay.
Tied to Fan Relay terminal.
Relay 'ON' command. The ECU supplies a ground
GRAY/WHITE
which closes the relay, supplying power to run the fuel
pump, injectors, etc.
ORANGE Fused 15- -amp, unswitched battery power IN supply for
EFI component operation.
RED/BLK
EFI power output. 'ON' when ECU sends a signal on the
GRY/W wire, closing the relay. Supplies 15- -amp power
for ECU- -controlled operation of EFI components.