Polaris RANGER 570 2020

4
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
4.1
ENGINE ELECTRICAL
CHAPTER 4
ENGINE ELECTRICAL
ELECTRONIC CONTROL UNIT (ECU) .... ... ............. . . . . . ............. .............. .. . . ......... 4.2
ECU OVERVIEW . . .. ............. . . . . . ............. ... ........... ... ........... .. . ............. . . . . . .. 4.2
RPM LIMIT ............ . . . . . ............. . . . . . ............. .. . . ............. . . . . . ............ .. .. ...... 4.2
ECU SERVICE . . . ............. .. .............. . . . . . ............. . . . . . ............. .. . . ............ . . . . 4.2
ECU REPLACEMENT . . . ............. .. .............. . . . . . ............. . . . . . ............. .. . .......... 4.3
ELECTRONIC THROTTLE BODY (ETC).......... .. . . ............. . . . . . .............. . . . . . ............. 4.4
ETC OVERVIEW . . .. ............. . . . . . ............. ... ........... .. . ............. . . . . . ............. .. . 4.4
ETC TEST. ... ............. . . . . . ............. .............. .. . ............. . . . . . ............. .. .. ...... 4.4
ETC REPLACEMENT.......... .............. .............. .. . . ............. . . . . . .............. . . . . . ... 4.4
ETC LEARN PROCEDURE .... .............. .. .. ............ . . . . . . ............ . . . . . .. ........... .. . . .. 4.4
TEMPERATURE / MANIFOLD ABSOLUTE PRESSURE (T-MAP)... ........... .. . ............. . . . . . .. 4.5
T-MAP OVERVIEW .. . .. ........... ... ........... .. . ............. . . . . . ............. .. . . ............. . . . 4.5
T-MAP SENSOR TEST . . ............. .............. ... ........... .. . . ............. . . . . . .............. . 4.5
T-MAP SENSOR REPLACEMENT . ............. . . . . . .. ........... ... ........... ... ............. . . . . . .. 4.5
PEDAL POSITION SENSOR (PPS) ... . . . .. ............. . . . . . ............. . . . . . ............ .. . . ......... 4.6
OPERATION OVERVIEW......... . . . . . ............. .. . ............. . . . . . ............. .. .. ............ . 4.6
PPS TEST. ... ............. . . . . . ............. .............. ... ........... .. . ............. . . . . . ......... 4.6
PPS REPLACEMENT.......... . . . . . .. ........... . . . . . . . ............ . . . . . ............. .. .. ............. 4.6
CRANKSHAFT POSITION SENSOR....... ... ............. . . . . . ............. .............. .. . . ......... 4.7
CPS OVERVIEW ........... . . . . . .. ............ . . . . . . ............ . . . . . . ............ .. . . ............. . . . 4.7
CPS TEST.......... . . . . . ............. .. .............. . . . . . ............. . . . . . ............. .. . .......... 4.7
CPS REPLACEMENT ............ . . . . . ............. ... ........... .. . ............. . . . . . ............. .. . 4.9
ENGINE COOLANT TEMPERATURE SENSOR (ETC) ... . . . . . ............ . . . . . . ............ .. .. .....4.10
ECT OVERVIEW . ............. .............. .............. .. . . ............ . . . . . ............. .. .. .....4.10
ECT SENSOR TEST........ ... ........... ... ............. . . . . . ............. .............. .. . . ........4.10
ECT SENSOR REPLACEMENT - 570 .. ............. .. . ............. . . . . . ............. .. .. ............4.11