Page 379 - Manual Oficina Polaris Sportsman 570 2014 a 2016

P. 379

FUEL SYSTEM

Perform specialized testing
and adjustment functions Run the Help System.
service reports.

Open the ASSERT ASK Prints the current screen as
form. a formatted printout.

ECU REPLACEMENT
Although the need for ECU replacement is unlikely, a specific replacement procedure is required to ensure that all 4
essential data contained within the original ECU is transferred to the replacement ECU.
Refer to procedure and carefully follow all instructions provided in Digital Wrench®.

ECU REPROGRAMMING (REFLASH)
Process Overview
The reprogramming feature is in the Special Tests menu on the Digital Wrench® screen. Start Digital Wrench® and
click on the Special Tests menu icon (red tool box). A technician should be familiar with the process and with computer
operation in general before attempting to reprogram an ECU.
The Digital Wrench® Engine Controller Reprogramming (or “Reflash”) feature allows reprogramming of the ECU fuel
and ignition map. To successfully reprogram the ECU, an Authorization Key must be obtained by entering a Request
Code in the box provided on the Reflash Authorization site. The Request Code is automatically 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 reprogramming can be attributed to a low battery. Be sure the
battery voltage (no load) is at least 13 volts and at least 12.5 volts with the key ‘ON’. Connect a battery charger if
necessary to bring voltage level above minimum. Fully charge the battery before you attempt to reprogram.
• DEDICATED LAPTOP: Best results are obtained using a laptop computer that is “dedicated to Digital Wrench®”. A
laptop that is used by a variety of people and in several applications around the dealership is more likely to cause a
reprogramming problem than one dedicated to Digital Wrench® diagnostics only.
• OBTAINING THE LATEST UPDATE: Reprogramming updates are provided periodically and contain the most recent
calibrations (see Chapter 4 – Digital Wrench® Updates, page 4.58.
• CLOSE NON-ESSENTIAL PROGRAMS: Polaris recommends that you DO NOT install non-essential programs on a
Service Department laptop. Camera detection software, Virus Scanners, Tool Bars, etc. may clog up memory if
running in the background and make it harder for the diagnostic software to operate.
• KNOW THE PROCESS: If you are not familiar with the entire reprogramming process, review the HELP section of
the diagnostic software before you attempt reprogramming. Click on the ? on the tool bar or press F11. The
information in the on-line help is the most current and complete information available. This should be your first step
until you are familiar with the process.
• COMMUNICATION PROBLEMS: If you have had problems communicating with a vehicle while performing
diagnostic functions, do not attempt reprogramming until the cause has been identified and fixed. Check all
connections, and be sure battery voltage is as specified.

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