10.6 | CANBUS / Communication Issues

Issue	Possible Cause	Recommended Action
CANBUSISOBUS communication unavailable	CANBUSISOBUS harness disconnected	Verify CANBUSISOBUS harness connections and adapter installation
CANBUSISOBUS communication unavailable	Incorrect CANBUSISOBUS connection point	Verify COMMAND is connected to the intended tractor orISOBUS implement CANBUSnetwork
CANBUSISOBUS communication unavailable	Incorrect CANBUSISOBUS adapter used	Verify the correct CANBUSISOBUS adapter harness is installed
CANBUSISOBUS communication unavailable	Incorrect CANBUS baud rate

Verify CANBUS network baud rate matches the connected system CANBUS communication unavailable CANBUSISOBUS network not powered Verify the tractor or external controller CANBUSISOBUS network is active CANBUSTractor CAN communication intermittentunavailable Incorrect Tractor CAN connection Verify COMMAND is connected to the intended Tractor CAN network Tractor CAN communication unavailable Incorrect Tractor CAN baud rate Verify Tractor CAN baud rate configuration within Level COMMAND Intermittent CANBUS virtual terminal or device dropouts Loose connector or damaged harness Inspect CANBUS harnessing and connectors Intermittent CANBUS communicationvirtual intermittentterminal or device dropouts Poor CANBUS termination Verify correct CANBUS termination resistance and network layout Intermittent CANBUS communicationvirtual intermittentterminal Electricalor noisedevice interference Inspect harness routing and grounding quality CANBUS devices not detecteddropouts Incorrect CANBUS network selected Verify connectionall CANBUS devices are connected to the correctintended tractor or implement CANBUSnetwork CANBUSGNSS devicesreceiver notintermittently detecteddisconnects IncorrectCANBUS device addressbackbone or configurationbranch wiring issue VerifyInspect CANBUS backbone and branch harness connections IMU intermittently disconnects CANBUS backbone or branch wiring issue Inspect CANBUS backbone and branch harness connections SCV controller addressingintermittently disconnects CANBUS backbone or branch wiring issue Inspect CANBUS backbone and networkbranch configurationharness connections No communication with VMthe SCV controller VMIncorrect controllerhydraulic notinterface poweredselected Verify VM430/431the powercorrect supplyhydraulic andinterface startupis statusconfigured within Level COMMAND No communication with VMthe SCV controller Incorrect VMSCV controllerCAN configurationbaud rate Verify VMSCV controllerCAN addressingbaud andrate communicationconfiguration settingswithin Level COMMAND No communication with VMthe SCV controller IncorrectUnsupported J1939tractor or SCV configuration Verify J1939tractor network settingscompatibility and compatibilitysupported hydraulic interface type J1939Tractor SCVs operate incorrectly Incorrect hydraulic interface configuration Verify configured hydraulic interface type and machine profile CAN joystick not detected Incorrect CANBUS connection Verify joystick connection to the intended tractor CANBUS network J1939CAN joystick not detected Unsupported joystick configuration Verify joystick compatibility and configuration Tractor SCVs not responding Incorrect tractor CANBUS connection VerifyLevel COMMAND isreports connectedno tocommunication with the correct tractor CANBUS Tractor SCVs not responding Unsupported tractor configuration Verify tractor compatibility and supported interface type Tractor SCVs operate incorrectly Incorrect CANBUS message configuration Verify configured hydraulic interface type and machine profile CANBUS communication unstable during operation Excessive network traffic Verify no unsupported devices are connected to the network CANBUS communication unstable during operation Incorrect network topology Verify CANBUS backbone and branch connections CANBUS devices intermittently reboot Unstable power supply Verify ECU, controller and CANBUS power supply stability ECU offline ECU power or ground issue Verify ECU power, ground and fuse connections ECU offlinepowers on but does not communicate with Level COMMAND Incorrect ECU firmware mismatchversion Verify ECU firmware version compatibility ECU powers on but does not communicate with Level COMMAND Incorrect CANBUS or Ethernet configuration Verify COMMAND communication configuration and harnessing Multiple CANBUS systems behave unpredictably Connected to incorrect CANBUS network Verify COMMAND is connected only to the intended CANBUS network Multiple CANBUS systems behave unpredictably Incorrect adapter or CANBUS bridging Inspect CANBUS adapters and network interconnections External controller communication lost Incorrect controller software version Verify external controller software compatibility Multiple CANBUS systems behave unpredictably Connected to incorrect CANBUS network Verify COMMAND is isolated to the intended CANBUS network Multiple CANBUS systems behave unpredictably CANBUS bridging or adapter issue Inspect adapters and network interconnections CANBUS diagnostics unavailable Incorrect diagnostic connection point Verify diagnostic adapter connection and network selection CANBUS diagnostics unavailable Unsupported CANBUS protocol Verify compatibility with the connected CANBUS system