Page 683 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ELECTRICAL

CONTROLLER AREA NETWORK (CAN)

This vehicle uses a Controller Area Network (CAN) to perform some functions. Similar to a computer network, CAN
establishes a communication network between the ECM and several on-board components.
The CAN network includes:
• ECM
• Instrument Cluster
• Digital Wrench Diagnostic Plug
• Electronic Power Steering (EPS models only)
NOTE
DO NOT SPLICE OR CUT INTO THE CAN YELLOW OR GREEN WIRE CIRCUITS.

CAN TROUBLESHOOTING
No CAN functionality can be indicated by the following items not working on the instrument cluster:
• No engine speed displayed
• No vehicle speed displayed
• No gear position displayed
• Odometer / Tripmeters not working
• Reverse override button does not toggle between display modes
• ECM-monitored inputs are not displayed when DTCs or problems exist, i.e. check engine LED, engine overheat
LED, etc.
• There is power at the Smart Link connector, but it cannot connect to Digital Wrench

To test the CAN circuit, turn the ignition key to OFF, and then use a multimeter to verify there is 60 +/- 10 ohms
between the CAN High (YELLOW) and CAN Low (GREEN) wires on the diagnostic connector.
If 120 ohms is measured at the connector, there is a break somewhere within the CAN circuit. 120 ohms is the value of
each terminating resistor, there is one in the ECU and one in the instrument cluster. The parallel configuration of the
circuit makes this 60 ohms when functioning correctly.
If the value is lower than 50 ohms, there is an additional parallel load in the circuit. Re-check the circuit after
disconnecting any other CAN connected devices that do not have a terminating resistor, such as the EPS module. If
the resistance goes back to near 60 ohms, the CAN module that was disconnected is the component at fault.

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9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 11.21
© Copyright Polaris Industries Inc.