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9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
CIRCUIT DIAGRAMS
CIRCUIT DIAGRAM VIEWING
Break-out circuit diagrams for this model may be found in the table below. To access the break-out diagrams, select
“Click Here” on the diagram you would like to view.
In addition to the diagrams being available in the online service manual, the break-out circuit diagrams may also be
found in the back of the paper manual.
CIRCUIT
NOTES
ECU Power Circuit: Click Here.
The 16 volt ECU power circuit provides power to the Injectors,
Ignition Coils and system sensors.
Critical Power Circuit: Click Here.
The 14 volt critical power circuit provides power to the fuel pump,
electronic oil pump and EVES Learn Relay. The EVES Learn
Relay powers the EVES Actuator, instrumentation, headlights and
tail light.
Chassis Power Circuit: Click Here.
The 14.4 volt chassis power circuit provides power to the hand
warmers, thumb warmer, and accessory DC power. The battery
charge relay powers the battery charge circuit.
IGNITION CONTROL SYSTEM OVERVIEW
A software stop is used to determine the position of the throttle release switch. The software stop system is activated
when the throttle release switch is closed (closed throttle), but the TPS (Throttle Plate Position) is still above idle.
When this occurs, the ECU will determine the throttle cable is “stuck” and disable the ignition system.
To test the throttle lever, measure the resistance with the lever pushed / closed and compare results to those listed for
the throttle release switch.
Always verify the throttle lever freeplay is set to specification.
A hardware stop system is a direct ignition disable system. That is, whenever the operator turns the key to off, pulls the
tether, or pushes the auxiliary stop switch down, the ignition system is immediately disabled.
NEXT-GEN SERVICE POWER HARNESS CIRCUIT DIAGRAM
This circuit diagram for the Next-Gen Service Power Harness may be found in the table below. To access the circuit
diagram , select “Click Here” to view the diagram.
In addition to the diagram being available in the online service manual, the circuit diagram may also be found in the
back of the paper manual.
CIRCUIT
NOTES
Next-Gen Service Power Harness Circuit: Click
Here.
Used to supply power to the fuel pump prime jumper, chassis
power, instrument cluster power, critical power, and ECU power
circuits when connected to a 12V stand-alone automotive type
battery with the Chassis Power-Up Harness.