2010 Polaris Sportsman 850 Service Manual, Page 64Get this manual

2010 Polaris Sportsman 850 Service Manual, Page 64

ELECTRONIC FUEL INJECTION CRANKSHAFT POSITION SENSOR (CPS) Operation Overview The crankshaft position sensor is essential
two revolutions each time the engine is startedThis sensor must be properly connected at all timesIf the sensor fails or
becomes disconnected for any reason, the engine will stop running Measure resistance at these two pins If resistance is correct,
check the mounting, toothed ring gear (damage, runout, etc, and flywheel key Crankshaft Position Sensor: 860 10 (20 C, 68
F) CPS Replacement 12Disconnect sensor harness connector (see "CPS Test")Using mm hex wrench, remove the retaining bolt and
remove the sensor from the magneto coverCPS CPS Test The crankshaft position sensor is sealed, non-serviceable assemblyIf
fault code diagnosis indicates problem with the CPS, test and correct as follows: 12Remove the seat and left-hand side panelLocate
and disconnect the CPS harness connector on the left side of the vehicle just below the ECU Install the new sensor using