Page 338 - Manual Oficina Polaris Sportsman 570 2014 a 2016

FUEL SYSTEM

ECU REPLACEMENT 5. To install, reverse the procedure and tighten any
Although the need for ECU replacement is unlikely, a fasteners to specification.
specific replacement procedure is required to ensure that NOTE
all essential data contained within the original ECU is
transferred to the replacement ECU. Upon installing the ECU connector, you should hear a
“click” when the connector is fully closed.
NOTE
Refer to this procedure and carefully follow all
instructions provided in Digital Wrench . ETC LEARN PROCEDURE

1. Carefully follow the ECU replacement instructions IMPORTANT
provided in Digital Wrench to ensure that all This procedure MUST be performed on the vehicle
essential data contained within the original ECU is whenever the ECU is replaced or reflashed or the
transferred to the replacement ECU.
throttle body is replaced.
2. Remove the front cover (fastened to the front cab
under the front rack). Remove the plastic push rivet
that attaches the ECU mount to the vehicle. 1. After the reflash / ECU replacement / throttle body
change, leave the key on (engine not running) for 60
seconds. Do NOTcrank the engine during this time.
2. Turn the key off and wait 3 minutes. During this time,
the ECU will write values into memory and then
completely shut down.
3. Turn key back on and start the vehicle. The vehicle
should operate normally.
4. If the procedure was interrupted at any time, start
back at step 1.

3. Rotate the ecu towards the front of the vehicle and
lift up to free the ecu mount from the vehicle.
4. With the ignition turned off, disconnect the wire
harness from the ECU. Lift the connector locking
lever and rotate it up until the connector is free from
the ECU.
NOTE
Upon removing the ECU connector, you should hear a
“click” when the connector is fully open.

4.22 9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual
© Copyright Polaris Industries Inc.