Polaris 2012 RANGER RZR 570 INTL Service Manual page 183

Engine Controller Reprogramming (Reflash)
Process Overview
The reprogramming feature is in the Special Tests menu
on the Digit al W rench™ scre en. Start Dig ital W rench™
and click on the Special Tests menu icon (red tool box). A
technician should be familiar with the proc ess and w ith
computer op eration in g eneral be fore attemp ting 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 Autho rization Key must be obt ained by en tering a
Request Cod e in the bo x provided o n the Reflash
Authorization site. The Request Co de is autom atically
generated by Digital Wrench™ during the reprogramming
process. The Reflash Authorization site is located under
the " Service and W arranty" d rop down menu on the
dealer website at: www.polarisdealers.com.
IMPORTANT: Failure to follow t he repr ogramming
instructions completely and correctly can result in an
engine t hat does not ru n! Replac ement ECUs are
programmed as "no- start" an d require a reflash for
them to work.
Reprogramming (Reflash) Tips:
• BATTERY VOL TAGE: The majority of problems
with reprogramming ca n be attributed to a low
battery. Be sure the battery voltage (no load) is a t
least 13 volts and at lea st 12.5 volts with the key
'ON'. Connect a battery cha rger if ne cessary to
bring volt age le vel ab ove min imum. F ully ch arge
the battery before you attempt to reprogram.
• DEDICATED LAPT OP: Best result s are obt ained
using a lap top com puter tha t is " dedicated to
Digital W rench™". A la ptop th at is u sed b y a
variety of pe ople and in sever al ap plications
around th e dea lership is mo re likely to cause a
reprogramming pr oblem than one de dicated to
Digital Wrench™ diagnostics only.
• OBTAINING THE LA
Reprogramming updates are provided periodically
and contain th e most
"Digital Wrench™ Updates").
TEST UPD ATE:
recent ca librations (see
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
ELECTRONIC FUEL INJECTION
• CLOSE NON-ESSENTIAL PROGRAMS : Polaris
recommends that yo u DO NOT
essential pr ograms o n a Ser vice De partment
laptop. Ca mera detection sof
Scanners, Tool Ba rs, et c. m ay clo g up m emory if
running in the background and make it h arder for
the diagnostic software to operate.
• KNOW THE PROCESS: If you are not familiar with
the en tire r eprogramming pr ocess, re view the
HELP se ction of the d iagnostic so ftware be fore
you attempt reprogramming. Click on the ? on the
tool bar or pr ess F11. The infor mation in th e on-
line help is the mos
information ava ilable. This shou ld b e you r first
step until you are familiar with the process.
• COMMUNICATION PROBLEMS: If you ha ve had
problems comm unicating with a
performing dia gnostic f unctions, do no t a ttempt
reprogramming until the cause has been identified
and fixe d. Check all con nections, an d be sure
battery voltage is as specified. 

Proceed to http://polaris.diagsys.com for
specific information an d F AQs on ho w to
troubleshoot communication problems.
• DON'T DISTURB THE PC : While r eprogramming
is in pr ogress, d on't mo ve th e mo use an d do n't
touch the keyboard. The process only takes a few
minutes, and is best left alone until complete.
inst all n on-
tware, V irus
t current a nd complete
vehicle while
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