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9929419 R02 - 2018-2019 RZR XP / XP 4 Turbo S Service Manual
© Copyright Polaris Industries Inc.
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7. If the pump did not activate , disconnect the harness
connector from the fuel pump. Connect a DC
voltmeter across terminals “3” and “4” in the plug on
the vehicle fuel pump harness. Turn on the key switch
and observe voltage to ensure a minimum of 7 volts is
present.
NOTICE
If the voltage was below 7 VDC, test the battery, ignition
switch, relay(s), wiring harness and ECU.
8. If the reading is between 7 and 14 volts, turn key
switch off and connect an ohmmeter between
terminals “3” and “4”' at the white fuel pump
connector to check for continuity within the fuel pump.
NOTICE
If there was no continuity between the pump terminals,
replace the fuel pump assembly.
9. If voltage at the plug was within the specified range,
and there was continuity across the pump terminals,
reconnect the plug to the fuel pump, making sure you
have a clean connection. Turn on the key switch and
listen for the pump to activate.
NOTICE
If the pump starts, repeat steps 3, 4 and 5 to verify
correct pressure.
10.If the pump still does not operate, check for correct
ECU operation by plugging in a known-good ECU of
the same model.
11. If the pump still does not operate, replace the fuel
pump.
FUEL PUMP REPLACEMENT
1. Move the vehicle to a well ventilated area. Shift the
transmission into Park and turn the ignition key off.
2. Remove the passenger seat (right rear on XP4) to
access the fuel pump.
WARNING
Always wear safety goggles when working with high
pressure or flammable fluids. Failure to do so could
result in serious injury or complications.
3. Be sure the top of the fuel tank is clean. If it requires
cleaning, hand wash the top of the tank to ensure no
debris will enter the fuel system when the fuel pump
is removed.
WARNING
Failure to clean area around fuel pump may lead to
debris entering the fuel tank during service. Excessive
debris in fuel tank may cause premature wear of fuel
pump and/or clogging of internal fuel filters.
4. Remove the plastic fuel pump access cover by
disengaging both tabs.
EFI / FUEL SYSTEM
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