Page 256 - Manual Oficina Polaris RZR XP 1000 17-18

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FUEL SYSTEM

ECU REPLACEMENT • BATTERY VOLTAGE: The majority of problems with
Although the need for ECU replacement is unlikely, a reprogramming can be attributed to a low battery. Be
specific replacement procedure is required to ensure that sure the battery voltage (no load) is at least 13 volts
all essential data contained within the original ECU is and at least 12.5 volts with the key ‘ON’. Connect a
transferred to the replacement ECU. battery charger if necessary to bring voltage level
above minimum. Fully charge the battery before you
Refer to procedure and carefully follow all instructions attempt to reprogram.
provided in Digital Wrench®.
• DEDICATED LAPTOP: Best results are obtained using
a laptop computer that is “dedicated to Digital
ETC LEARN PROCEDURE Wrench®”. A laptop that is used by a variety of people
and in several applications around the dealership is
IMPORTANT more likely to cause a reprogramming problem than
This procedure MUST be performed on the vehicle one dedicated to Digital Wrench® diagnostics only.
whenever the ECU is replaced or reflashed or the • OBTAINING THE LATEST UPDATE: Reprogramming
throttle body is replaced. updates are provided periodically and contain the most
recent calibrations (see Chapter 4 – Digital Wrench®
Updatespage 4.57.
1. After the reflash / ECU replacement / throttle body
change, leave the key on (engine not running) for 60 • CLOSE NON-ESSENTIAL PROGRAMS: Polaris
seconds. Do NOTcrank the engine during this time. recommends that you DO NOT install non-essential
programs on a Service Department laptop. Camera
2. Turn the key off and wait 3 minutes. During this time, detection software, Virus Scanners, Tool Bars, etc.
the ECU will write values into memory and then may clog up memory if running in the background and
completely shut down.
make it harder for the diagnostic software to operate.
3. Turn key back on and start the vehicle. The vehicle • KNOW THE PROCESS: If you are not familiar with the
should operate normally.
entire reprogramming process, review the HELP
4. If the procedure was interrupted at any time, start section of the diagnostic software before you attempt
back at step 1. 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
ECU REPROGRAMMING (REFLASH)
should be your first step until you are familiar with the
Process Overview process.
The reprogramming feature is in the Special Tests menu • COMMUNICATION PROBLEMS: If you have had
on the Digital Wrench® screen. Start Digital Wrench® problems communicating with a vehicle while
and click on the Special Tests menu icon (red tool box). A performing diagnostic functions, do not attempt
technician should be familiar with the process and with reprogramming until the cause has been identified and
computer operation in general before attempting to fixed. Check all connections, and be sure battery
reprogram an ECU. voltage is as specified.

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.

NOTICE
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:

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