Polaris 850 PRO-RMK 155 2.6" QD 2021, Manual

Page: 322 / 747

3.122
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
EV ACTUATOR LEARN PROCEDURE
The EV Actuator Learn Procedure is a Service Procedure
performed with Digital Wrench. The procedure erases
the full-closed and full-open cable travel settings in the
ECU, and then sweeps the actuator to “learn” the stop
positions.
Prior to completing the procedure, the software conducts
a fault check to ensure the system is operating correctly.
The EV Actuator Learn Procedure must be performed
whenever the following occurs:
• EV actuator is replaced
• EV actuator cable is replaced or removed from the tie
bar
• Any exhaust valve (upper or lower) is replaced
• Cylinder is replaced
The EV Actuator Learn Procedure does not need to be
performed if the actuator cable is removed from the
actuator and actuator jam nut bracket.
NOTICE
The EV Actuator Learn Procedure will not work if the
battery cannot supply the required voltage to the
actuator. Do not perform this procedure with a partially-
charged battery. Verify the battery provides a minimum
of 12.5 volts before attempting procedure.
Verify all wires are in good condition and connectors
are connected to the actuator, and ECU.
IMPORTANT
Do not attempt to increase battery voltage by
connecting batteries in series. EV actuator damage will
occur if battery power supply exceeds 16 volts.
1. Obtain a fully-charged 12 volt battery and the Chassis
Power Up Harness.
Chassis Power Up Harness:
PS-47296–B
2. Open the left engine compartment panel.
3. Connect the Next-Gen Service Power Harness to the
diagnostic connector on the wiring harness.
Next-Gen Service Power Harness:
PS-52573
4. Connect the Chassis Power Up harness leads to the
ECU PWR and CRITICAL PWR diagnostic test
connectors on the Next-Gen Service Power Harness.
5. Connect the power up harness to the battery.
NOTICE
If the snowmobile is equipped with a fully-charged
battery, it can be used to supply power to the test
connectors. If using a stand-alone service battery, do
not place the battery in the tunnel footwells. Place the
battery on the floor next to the engine compartment.
6. Connect the SmartLink cable to the vehicle and PC /
laptop.
ENGINE / COOLING / EXHAUST