Page 553 - Manual_Polaris_RZR_ProXP-20-21

ELECTRICAL

BOOST CONTROL SOLENOID / VALVE SUSPENSION MODE SWITCH (DYNAMIX
The boost control valve q allows the ECU to control the MODELS)
amount of boost pressure within the induction system. For more information on the Dynamix suspension
Boost control is accomplished by pulsing the valve at system, refer to the Steering / Suspension chapter -
different frequencies (pulse width modulate) depending Dynamix Overview page 9.68
on the amount of boost pressure within the induction
system. If the ECU determines that the targeted boost
pressure has been obtained, the ECU will trigger the
pulse valve so that a certain level of compressor
pressure is routed to the wastegate actuator. Doing so
activates the wastegate so that a proportion of exhaust
gas bypasses the turbine. The boost control valve vents
to atmosphere when building boost. If the vent hose w to
atmosphere is plugged, an underboost code will set.

SWITCH CONTACT CONTACT PINS 1 TO
POSITION A B 7
Comfort Closed Open 1270 Ω

Sport Open Open 1400 Ω
Firm Open Closed 1330 Ω

If a trouble code is being set for the boost control valve
and the vent hose is not plugged, the valve can be
statically tested with a multimeter. Disconnect the
harness to the valve and ohm the two pins on the valve.
Boost Control Valve:
22–24 Ω

More information relating to the turbocharger system and
components may be found in the Engine and Fuel
System chapters.

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9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual 12.17
© Copyright Polaris Industries Inc.