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9924864 - 2012-2014 SPORTSMAN 800 / 6X6
© Copyright 2013 Polaris Sales Inc.
CRANKSHAFT POSITION SENSOR (CPS)
Operation Overview
The engine speed sensor is essential to engine
operation, constantly monitoring the rotational speed
(RPM) and position of the crankshaft.
A ferromagnetic 60-tooth ring gear with two consecutive
teeth missing is mounted on the flywheel. The inductive
speed sensor is mounted 1.0 ± 0.26 mm (0.059 ± 0.010
in.) away from the ring gear. During rotation, an AC pulse
is created within the sensor for each passing tooth. The
ECU calculates engine speed from the time interval
between the consecutive pulses. The two-tooth gap
creates an “interrupt” input signal, corresponding to
specific crankshaft position for PTO cylinder. This signal
serves as a reference for the control of ignition timing by
the ECU. Synchronization of the CPS and crankshaft
position takes place during the first two revolutions each
time the engine is started. This sensor must be properly
connected at all times. If the sensor fails or becomes
disconnected for any reason, the engine will quit running.
Crankshaft Position Sensor Test
The crankshaft position sensor is a sealed, non-
serviceable assembly. If fault code diagnosis indicates a
problem within this area, test and correct as follows:
1.
Disconnect main harness connector from ECU.
2.
Connect an ohmmeter between the pin terminals. A
resistance value of 560Ω ± 10% at room temperature
(20° C, 68° F) should be obtained. If resistance is
correct, check the mounting, air gap, toothed ring
gear (damage, runout, etc.), and flywheel key.
Crankshaft Position Sensor:
560Ω ± 10% (20° C, 68° F)
3.
Disconnect speed sensor connector from wiring
harness. (the connector with one heavy black lead)
Viewing the connector with dual aligning rails on top,
test resistance between the terminals. A reading of
560Ω ± 10% should again be obtained.
NOTE: If the resistance is incorrect, remove the
screw securing the sensor to the mounting
bracket and replace the sensor. If the resistance
in step 2 was incorrect, but the resistance of the
sensor alone was correct, test the main harness
circuit between the sensor connector terminals
and the corresponding pin terminals in the main
connector.
Correct
any
observed
problem,
reconnect the sensor, and perform step 2 again.
FUEL SYSTEM - GENERAL
Summary of Contents for Sportsman 800 EFI 4x4 2012
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Page 60: ...2 40 9924864 2012 2014 SPORTSMAN 800 6X6 Copyright 2013 Polaris Sales Inc NOTES MAINTENANCE ...
Page 134: ...3 74 9924864 2012 2014 SPORTSMAN 800 6X6 Copyright 2013 Polaris Sales Inc NOTES ENGINE ...
Page 266: ...6 50 9924864 2012 2014 SPORTSMAN 800 6X6 Copyright 2013 Polaris Sales Inc NOTES CLUTCHING ...
Page 384: ...8 44 9924864 2012 2014 SPORTSMAN 800 6X6 Copyright 2013 Polaris Sales Inc NOTES TRANSMISSION ...
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Page 483: ...2012 2014 SPORTSMAN 800 EFI PAGE 2 OF 2 ...
Page 484: ...Located By Battery 2012 2014 SPORTSMAN 800 EFI 6X6 PAGE 1 OF 2 ...
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