Polaris RZR PRO XP 2020, Руководство по обслуживанию

Страница: 553 / 598

12
9850068 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.
12.17
BOOST CONTROL SOLENOID / VALVE
The boost control valve
q
allows the ECU to control the
amount of boost pressure within the induction system.
Boost control is accomplished by pulsing the valve at
different frequencies (pulse width modulate) depending
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.
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.
SUSPENSION MODE SWITCH (DYNAMIX
MODELS)
For more information on the Dynamix suspension
system, refer to the Steering / Suspension chapter -
Dynamix Overview page 9.68
SWITCH
POSITION
CONTACT
A
CONTACT
B
PINS 1 TO
7
Comfort Closed
Open
1270 Ω
Sport Open Open
1400 Ω
Firm
Open
Closed 1330 Ω
ELECTRICAL