Page 228 - Manual Oficina Polaris RZR 570 13-18

FUEL SYSTEM

ECU REPLACEMENT • CLOSE NON-ESSENTIAL PROGRAMS: Polaris
Although the need for ECU replacement is unlikely, a recommends that you DO NOT install non-essential
specific replacement procedure is required to ensure that programs on a Service Department laptop. Camera
all essential data contained within the original ECU is detection software, Virus Scanners, Tool Bars, etc.
transferred to the replacement ECU. may clog up memory if running in the background and
make it harder for the diagnostic software to operate.
Refer to procedure and carefully follow all instructions • KNOW THE PROCESS: If you are not familiar with the
provided in Digital Wrench®. entire reprogramming process, review the HELP
section of the diagnostic software before you attempt
ECU REPROGRAMMING (REFLASH) reprogramming. Click on the ? on the tool bar or press
F11. The information in the on-line help is the most
Process Overview
current and complete information available. This
The reprogramming feature is in the Special Tests menu should be your first step until you are familiar with the
on the Digital Wrench® screen. Start Digital Wrench® process.
and click on the Special Tests menu icon (red tool box). A • COMMUNICATION PROBLEMS: If you have had
technician should be familiar with the process and with problems communicating with a vehicle while
computer operation in general before attempting to performing diagnostic functions, do not attempt
reprogram an ECU. reprogramming until the cause has been identified and
The Digital Wrench® Engine Controller Reprogramming fixed. Check all connections, and be sure battery
(or “Reflash”) feature allows reprogramming of the ECU voltage is as specified.
fuel and ignition map. To successfully reprogram the
ECU, an Authorization Key must be obtained by entering • Proceed to http://polaris.diagsys.com for specific
a Request Code in the box provided on the Reflash information and FAQs on how to troubleshoot
Authorization site. The Request Code is automatically communication problems.
generated by Digital Wrench® during the reprogramming
process. The Reflash Authorization site is located under
the “Service and Warranty” drop down menu on the
dealer website at: www.polarisdealers.com.
NOTE
Failure to follow the reprogramming instructions
completely and correctly can result in an engine that
does not run! Replacement ECUs are programmed as
“no-start” and require a reflash for them to work.

Reprogramming (Reflash) Tips:
• BATTERY VOLTAGE: The majority of problems with • DON’T DISTURB THE PC: While reprogramming is in
reprogramming can be attributed to a low battery. Be progress, don’t move the mouse and don’t touch the
sure the battery voltage (no load) is at least 13 volts keyboard. The process only takes a few minutes, and
and at least 12.5 volts with the key ‘ON’. Connect a is best left alone until complete.
battery charger if necessary to bring voltage level
above minimum. Fully charge the battery before you Reprogramming (Reflash) Procedure:
attempt to reprogram. If you are not familiar with the reprogramming process,
• DEDICATED LAPTOP: Best results are obtained using review the “Reprogramming (Reflash) Tips” before you
a laptop computer that is “dedicated to Digital begin. Follow the on-screen instructions as you progress
Wrench®”. A laptop that is used by a variety of people through the steps. If you encounter a problem, always
and in several applications around the dealership is check the On-Line help for current tips and information.
more likely to cause a reprogramming problem than
one dedicated to Digital Wrench® diagnostics only. 1. Verify the most current update has been downloaded
• OBTAINING THE LATEST UPDATE: Reprogramming and loaded into Digital Wrench®. Digital Wrench
updates are provided periodically and contain the most Software Version and Update ID, page 4.36
recent calibrations (see Chapter 4 – Digital Wrench® 2. Connect SmartLink Module cables to PC and
Updates, page 4.37. vehicle.
3. Open the Digital Wrench® program.

4.42 9926813 R06 - 2013-2016 RZR 570 Service Manual
© Copyright Polaris Industries Inc.