Page 197 - Manual Oficina Polaris RZR 570 13-18

FUEL SYSTEM

ECU SERVICE 3. With the ignition turned off, disconnect the wire
Never attempt to disassemble the ECU. It is sealed to harness from the ECU. Lift the connector locking
prevent damage to internal components. Warranty is void lever and rotate it up until the connector is free from
if the case is opened or tampered with in any way. the ECU.
All operating and control functions within the ECU are NOTE
pre-set. No internal servicing or readjustment may be
performed. If a problem is encountered, and you Upon removing the ECU connector, you should hear a
determine the ECU to be faulty, contact the Polaris “click” when the connector is fully open.
Service Department for specific handling instructions. Do
not replace the ECU without factory authorization.
The relationship between the ECU and the throttle
position sensor (TPS) is very critical to proper system
operation. If the TPS is faulty, or the mounting position of
the TPS to the throttle body is altered, the TPS must be
adjusted. 4
For the purpose of troubleshooting, a known-good ECU
from another Polaris RZR 570 of the same model may be
used without system or engine component damage.

ECU REPLACEMENT
Although the need for ECU replacement is unlikely, a
specific replacement procedure is required to ensure that
all essential data contained within the original ECU is
transferred to the replacement ECU.
NOTE 4. To install, reverse the procedure and tighten the
mounting screws to specification.
Refer to this procedure and carefully follow all
instructions provided in Digital Wrench®. NOTE
Upon installing the ECU connector, you should hear a
1. Carefully follow the ECU replacement instructions
provided in Digital Wrench® to ensure that all “click” when the connector is fully closed.
essential data contained within the original ECU is
transferred to the replacement ECU. TORQUE
2. Remove the black plastic cover by lifting up on the ECU Retaining Screws
tab. Remove the retaining screw that attaches the 10 in-lb (1 Nm)
ECU to the left rear fender well.

ECU REPLACEMENT
1. Remove the two retaining screws holding the ECU.
2. With the ignition turned off, disconnect the wire
harness from the ECU.
3. To install, reverse the procedure and tighten screws
to specification.
TORQUE
ECU Retaining Screws
10 in-lb (1 Nm)

9926813 R06 - 2013-2016 RZR 570 Service Manual 4.11
© Copyright Polaris Industries Inc.