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9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
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.
7. Start Digital Wrench on the laptop.
8. Select the model year, product line and vehicle
description by selecting the “Change Vehicle Type”
icon.
9. Select the “Special Tests” icon. Select “ECU / Injector
/ Oil Pump Replacement”.
10.On the following screen, select “ECU Replacement”.
11. The next screen will prompt the user to verify the
defective ECU is connected to the vehicle and the
Chassis Power-Up harness is connected. Click “Done
/ Continue” to proceed.
12.After Digital Wrench copies the ECU information, the
user will be prompted to disconnect the power to the
ECU and replace the defective ECU with the new
Service ECU.
IMPORTANT
Do not click any buttons or make changes to Digital
Wrench on the PC / laptop when changing-out ECUs.
13.After the new service ECU is installed and the wire
harness connectors are installed, reconnect the
chassis power-up harness to the ECU PWR Test
connector.
GENERAL INFORMATION
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