Ecu Replacement - Polaris 2012 RANGER RZR 570 INTL Service Manual

ELECTRONIC FUEL INJECTION

ECU Replacement

Although the ne ed for ECU r eplacement is u nlikely, a
specific replacement procedure is required to ensure that
all essentia l da ta con tained within the original ECU is
transferred to the replacement ECU.
IMPORTANT: Refer to this proc edure and ca refully
follow all instructions provided in Digital Wrench™.
1. Carefully follow the ECU
provided in D igital Wr ench™ to en sure th at all
essential dat a cont ained within the original E CU is
transferred to the replacement ECU.
2. Remove the black plastic cover by lifting up on the tab.
Remove the retaining screw that attaches the ECU to
the left rear fender well.
Lift Tab
Remove
3. With the ign ition turned off, d isconnect the wire
harness from the ECU. Lift the connector locking lever
and rotate it up u ntil the connector is free fro m the
ECU.
NOTE: Upon remov ing th e ECU c onnector, you
should he ar a "clic k" whe n t he c onnector is f ully
open.
4.12
replacement instru ctions
Remove
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
4. To in stall, r everse the pr ocedure an d tig hten the
mounting screws to specification.
NOTE: Upon ins talling t he ECU c onnector, y ou
should hea r a "click" when t he conn ector is f ully
closed.
ECU Retaining Screws
10 in. lbs. (1.1 Nm)
ECU Replacement
1. Remove the (2) retaining screws holding the ECU.
2. With the ig nition turn ed off, disconnect the wir e
harness from the ECU.
3. To install, reverse the procedure and tighten screws
to specification.
ECU Retaining Screws
10 in. lbs. (1.1 Nm)
= T
= T