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

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9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
11. After programming process is complete, disconnect
the Chassis Power-Up harness from the ECU PWR
test connector. Wait for at least 10 seconds, and then
reconnect the harness.
12. If the chaincase upper and lower sprockets are
different than the stock specification, perform the
Gearing Change Reprogramming Procedure.
DIGITAL WRENCH – FUEL INJECTOR
REPLACEMENT
IMPORTANT
Serious engine damage may occur if the incorrect fuel
injector color is selected. Always verify the fuel injector
color before programming.
The MAG and PTO fuel injectors are noted with labels
q
. Install the fuel injectors in their correct locations.
RED, BLUE, or YELLOW color bands
w
are located at
the base of each fuel injector. When replacing fuel
injectors, reference this color band to ensure the right
fuel map is selected using Digital Wrench.
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 one of the Chassis Power Up harness leads
to the ECU PWR diagnostic test connector 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.
GENERAL INFORMATION