10 | Troubleshooting
- 10.1 | Overview
- 10.2 | GNSS & Position Issues
- 10.3 | Hydraulic Control Issues
- 10.4 | Joystick & Operator Input Issues
- 10.5 | IMU & Terrain Compensation Issues
- 10.6 | CANBUS / Communication Issues
- 10.7 | Support Information
10.1 | Overview
This section provides basic troubleshooting information for common COMMAND installation and operation issues.
Before troubleshooting:
- Confirm all system components are correctly installed
- Verify all connectors are fully seated and undamaged
- Ensure the system has been configured correctly within Level COMMAND
- Confirm all machine power and hydraulic systems are operating normally
If an issue cannot be resolved using the information below, contact T3RRA support.
10.2 | GNSS & Position Issues
|
Issue |
Possible Cause | Recommended Action |
| No GNSS position detected | Receiver harness disconnected | Verify GNSS receiver harness connections |
| No GNSS position detected | Receiver not powered | Verify GNSS receiver/display powers on correctly |
| No GNSS data after startup | Receiver still initialising | Allow receiver sufficient time to initialise and acquire satellite lock |
| Receiver powers on but no data detected | Incorrect receiver output connection or configuration | For NMEA 2000 receivers, verify connection to the correct CANBUS port operating at 250 kbps. For NMEA 0183 receivers, verify the correct serial output port and baud rate are configured and connected |
| Receiver powers on but no data detected | Incorrect RS232 baud rate configuration | For NMEA 0183 receivers, verify the configured serial baud rate matches the Level COMMAND receiver configuration |
| Receiver powers on but no data detected | Incorrect CANBUS connection or baud rate | For CANBUS/NMEA 2000 receivers, verify the receiver is connected to the correct CANBUS network operating at 250 kbps |
| Receiver powers on but no data detected | NMEA output messages not enabled | Verify required NMEA output messages are enabled within the receiver/display configuration |
| Position updates slowly | Low output rate configured | Configure receiver output rate to minimum 5 Hz; 10 Hz recommended |
| No RTK corrections | Incorrect base station selected | Verify the implement receiver is connected to the intended base station or correction source |
| No RTK corrections | Base station not transmitting corrections | Verify base station operation and correction output |
| No RTK corrections | Incorrect base station configuration | Verify base station radio/modem and correction output configuration |
| No RTK corrections | Incorrect implement receiver configuration | Verify correction source, radio/modem and RTK settings within the implement receiver |
| RTK intermittently lost | Poor correction radio signal | Inspect correction antenna placement and cable condition |
| RTK intermittently lost | Excessive distance from base station | Reduce distance to base station or verify correction coverage |
| RTK intermittently lost | GNSS quality thresholds configured too aggressively | Verify Level COMMAND GNSS requirement settings are suitable for current operating conditions |
| Poor accuracy or drifting | Low GNSS correction quality | Verify RTK/DGNSS correction status |
| Poor accuracy or drifting | Multipath or obstructed sky view | Move machine to open sky area clear of obstructions |
| GNSS accuracy degraded unexpectedly | Receiver operating in Float/DGNSS mode | Verify RTK Fix status before operation |
| Position intermittently lost | Damaged harness or loose connector | Inspect GNSS harnessing and connectors |
| Position quality degraded | Receiver firmware outdated | Verify GNSS receiver firmware is up to date |
| Position appears offset | Incorrect base station coordinates | Verify configured base station coordinates |
| Position appears offset | Connected to incorrect base station | Verify the implement receiver is connected to the correct base station |
| Position appears offset | Incorrect receiver offsets configured | Verify receiver height, fore/aft and lateral offsets within Level COMMAND |
Receivers with Terrain Compensation
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| Cross-slope or terrain response incorrect | Receiver-integrated TCM not calibrated | Perform TCM calibration according to receiver manufacturer instructions |
| Cross-slope or terrain response incorrect | TCM disabled within receiver configuration | Verify TCM functionality is enabled within the GNSS receiver configuration |
Receivers without Terrain Compensation (Cross-slope sensor required)
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| Cross-slope or terrain response incorrect | Sensor offsets not enabled | Verify sensor offsets are enabled within Level COMMAND |
| Cross-slope or terrain response incorrect | Incorrect sensor offsets configured | Verify IMU position offsets are correctly measured and configured within Level COMMAND |
| Cross-slope or terrain response incorrect | Incorrect IMU assignment or configuration | Verify the correct IMU source is configured within Level COMMAND |
| Terrain compensation unstable | TARS IMU mounted incorrectly | Verify IMU mounting orientation and mounting rigidity |
10.3 | Hydraulic Control Issues
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| No hydraulic movement | Valve harness disconnected | Verify all ECU and valve harness connections |
| No hydraulic movement | Incorrect hydraulic interface selected | Verify the configured hydraulic interface type within Level COMMAND |
| No hydraulic movement | Hydraulic outputs disabled | Verify COMMAND outputs are enabled and Automatic Control is Armed. Check valve status within COMMAND Settings > Valve Configs or COMMAND Settings > Tuning |
| No hydraulic movement | Tractor hydraulic remotes disabled | Verify tractor SCVs/remotes are enabled and assigned correctly |
| Raise/lower functions reversed | Incorrect valve polarity or hydraulic configuration | Verify hydraulic output polarity and configuration |
| Raise/lower functions reversed | Hydraulic hoses connected incorrectly | Verify hydraulic hose routing and plumbing orientation |
| Hydraulic outputs operate incorrectly | Incorrect valve type selected | Verify the configured hydraulic interface matches the installed valve system. Check valve status within COMMAND Settings > Valve Configs |
| Hydraulic outputs operate incorrectly | Incorrect CANBUS interface configuration | Verify CANBUS/J1939 hydraulic interface configuration |
| Hydraulic movement unstable | Incorrect calibration values | Recheck hydraulic calibration and tuning settings |
| Hydraulic movement unstable | Incorrect tuning parameter configuration | Verify minimum extend/retract thresholds, maximum extend/retract thresholds, tracking sensitivity and cylinder ratio settings |
| Hydraulic movement slow or unresponsive | Hydraulic flow limits too low | Verify tractor hydraulic flow settings |
| Hydraulic movement slow or unresponsive | Engine RPM too low | Operate machine at recommended engine RPM |
| Hydraulic movement delayed | Excessive deadband configuration | Verify deadband and response tuning settings |
| Hydraulic outputs noisy or erratic | Damaged PWM/analog wiring | Inspect hydraulic output harnessing for damage |
| Hydraulic calibration cannot be completed | Incorrect machine setup during calibration | Perform calibration on stable level ground |
| Hydraulic calibration cannot be completed | Incorrect valve wiring | Verify valve output wiring and polarity |
| Automatic Control disengages during operation | Hydraulic response outside configured limits | Verify hydraulic tuning and response stability |
| Automatic Control performance inconsistent | Incorrect implement profile selected | Verify correct implement configuration within Level COMMAND |
| Hydraulic movement continues after command released | Hydraulic valve sticking | Inspect hydraulic valve operation and cleanliness |
| Hydraulic movement continues after command released | Incorrect valve calibration | Recheck valve calibration settings |
| Hydraulic outputs noisy or erratic | Electrical noise or poor grounding | Verify ECU and valve grounds are secure |
| Hydraulic outputs noisy or erratic | Damaged PWM/analog wiring | Inspect hydraulic output harnessing for damage |
| Hydraulic outputs noisy or erratic | Incorrect PWM frequency configuration | Verify PWM frequency matches valve requirements |
| No external valve response | Incorrect VM430/431 configuration | Verify external valve controller setup and addressing |
| No external valve response | Incorrect J1939 configuration | Verify J1939 network settings and communication |
| Hydraulic response differs between directions | Unequal flow settings | Verify raise/lower hydraulic flow configuration |
| Hydraulic calibration cannot be completed | Incorrect machine setup during calibration | Perform calibration on stable level ground |
| Hydraulic calibration cannot be completed | Incorrect valve wiring | Verify valve output wiring and polarity |
| Automatic Control disengages during operation | Hydraulic response outside configured limits | Verify hydraulic tuning and response stability |
| Automatic Control performance inconsistent | Incorrect implement profile selected | Verify correct implement configuration within Level COMMAND |
10.4 | Joystick & Operator Input Issues
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| Joystick not detected | Joystick harness disconnected | Verify joystick harness connections and adapter installation |
| Joystick not detected | Incorrect joystick adapter used | Confirm the correct joystick adapter harness is installed |
| Joystick not detected | Joystick not powered | Verify joystick power supply and CANBUS/voltage supply |
| No joystick response | Incorrect joystick type selected | Verify joystick type configuration within COMMAND Settings > Valve Configs |
| No joystick response | Incorrect CANBUS connection | Verify joystick connection to the correct tractor CANBUS network |
| No joystick response | Incorrect joystick baud rate or CAN configuration | Verify joystick CANBUS/J1939 configuration |
| No joystick response | Incorrect analog input wiring | Verify analog joystick signal wiring and pinout |
| Analog joystick unstable | Incorrect voltage range | Verify joystick output voltages are within expected operating range |
| Analog joystick unstable | Electrical noise or poor grounding | Verify grounding and harness routing away from high-current wiring |
| Analog joystick unstable | Damaged potentiometer or joystick hardware | Inspect joystick operation and signal stability |
| Joystick response delayed | CANBUS communication delay | Verify CANBUS communication quality and network loading |
| Joystick response delayed | Incorrect filtering or response settings | Verify joystick response configuration within COMMAND Settings > Valve Configs |
| Raise/lower commands reversed | Incorrect joystick polarity or mapping | Verify joystick direction mapping and polarity configuration within COMMAND Settings > Valve Configs |
| Auxiliary joystick buttons not functioning | Incorrect button mapping | Verify auxiliary button assignments within COMMAND Settings > Valve Configs |
| Engage switch not detected | Incorrect engage switch wiring | Verify engage switch wiring and connector installation |
| Automatic Control will not Engage | Joystick not returning to neutral | Verify joystick neutral position and calibration |
| Automatic Control disengages unexpectedly | Engage switch issue | Verify engage switch operation and stability |
| Automatic Control disengages unexpectedly | Unintended joystick movement detected | Verify joystick mounting and operator input stability |
| Automatic Control disengages unexpectedly | Joystick calibration incorrect | Recheck joystick calibration within COMMAND Settings > Valve Configs |
| Joystick input intermittently lost | Loose connector or damaged harness | Inspect joystick harnessing and connectors |
| Joystick input intermittently lost | CANBUS termination or communication issue | Verify CANBUS network integrity and termination |
| Analog joystick calibration fails | Input voltage outside expected range | Verify joystick signal voltage and wiring |
| J1939 joystick not communicating | Incorrect CANBUS network selected | Verify joystick is connected to the intended tractor CANBUS |
| J1939 joystick not communicating | Unsupported joystick configuration | Verify joystick compatibility and configuration requirements |
| J1939 joystick buttons operate incorrectly | Incorrect button assignment configuration | Verify configured joystick button mappings within COMMAND Settings > Valve Configs |
| Operator input behaves inconsistently | Multiple input devices configured incorrectly | Verify only intended joystick/input devices are enabled |
| Operator input behaves inconsistently | Incorrect software configuration loaded | Verify the correct machine and joystick profile is selected |
10.5 | IMU & Terrain Compensation Issues
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| Cross-slope compensation not operating correctly | IMU disconnected | Verify IMU harness connections and power supply |
| Cross-slope compensation not operating correctly | IMU not enabled within Level COMMAND | Verify IMU functionality is enabled within Level COMMAND |
| Cross-slope control produces unexpected movement | Incorrect IMU orientation | Verify IMU orientation and mounting direction |
| Implement is not level while reporting 0° / 0% cross-slope | IMU mounted on angled surface | Mount IMU to a level reference surface aligned with the machine |
| Implement is not level while reporting 0° / 0% cross-slope | Incorrect sensor offsets configured | Verify sensor offsets are correctly measured and configured within Level COMMAND |
| Cross-slope angle displayed incorrectly | Incorrect IMU assignment or configuration | Verify the correct IMU source is configured within Level COMMAND |
| Reported cross-slope angle is unstable | Loose IMU mounting hardware | Verify IMU mounting hardware is secure |
| Reported cross-slope angle is unstable | IMU mounted on flexible surface | Mount IMU to a rigid surface isolated from excessive vibration |
| Reported cross-slope angle is erratic even when travelling over smooth ground | Excessive vibration at mounting location | Inspect IMU mounting location and machine vibration sources |
| Cross-slope compensation differs between passes | IMU mounting position shifted | Inspect IMU mounting and alignment |
| Cross-slope compensation differs between passes | GNSS correction quality unstable | Verify RTK/DGNSS correction status |
| Cross-slope compensation produces inconsistent results | Sensor offsets disabled | Verify sensor offsets are enabled within Level COMMAND |
| TCM calibration cannot be completed | Poor satellite visibility | Move machine to open sky area clear of obstructions |
| TCM calibration cannot be completed | Incorrect GNSS receiver configuration | Verify GNSS receiver operation and correction quality |
| TCM calibration cannot be completed | Excessive machine vibration during calibration | Perform calibration with machine stationary and hydraulics stable |
| IMU intermittently disconnects | Loose connector or damaged harness | Inspect IMU harnessing and connectors |
| IMU intermittently disconnects | CANBUS communication instability | Verify CANBUS network integrity and termination |
| Terrain compensation differs between passes | IMU mounting shifted | Inspect IMU mounting and alignment |
| Terrain compensation differs between passes | GNSS correction quality unstable | Verify RTK/DGNSS correction status |
| Automatic Control performance inconsistent on slopes | Cross-slope compensation disabled | Verify terrain compensation is enabled within Level COMMAND |
| Automatic Control performance inconsistent on slopes | Incorrect terrain compensation source selected | Verify the intended IMU/TCM source is configured |
| TCM calibration cannot be completed | Poor satellite visibility | Move machine to open sky area clear of obstructions |
| TCM calibration cannot be completed | Incorrect GNSS receiver configuration | Verify GNSS receiver operation and correction quality |
| TCM calibration cannot be completed | Excessive machine vibration during calibration | Perform calibration with machine stationary and hydraulics stable |
| IMU intermittently disconnects | Loose connector or damaged harness | Inspect IMU harnessing and connectors |
| IMU intermittently disconnects | CANBUS communication instability | Verify CANBUS network integrity and termination |
10.6 | CANBUS / Communication Issues
| Issue | Possible Cause | Recommended Action |
|---|---|---|
| ISOBUS communication unavailable | ISOBUS harness disconnected | Verify ISOBUS harness connections and adapter installation |
| ISOBUS communication unavailable | Incorrect ISOBUS connection point | Verify COMMAND is connected to the tractor ISOBUS network |
| ISOBUS communication unavailable | Incorrect ISOBUS adapter used | Verify the correct ISOBUS adapter harness is installed |
| ISOBUS communication unavailable | ISOBUS network not powered | Verify the tractor ISOBUS network is active |
| Tractor CAN communication unavailable | 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 virtual terminal or device dropouts | Poor CANBUS termination | Verify correct CANBUS termination resistance and network layout |
| Intermittent CANBUS virtual terminal or device dropouts | Incorrect CANBUS network selected | Verify all CANBUS devices are connected to the intended network |
| GNSS receiver intermittently disconnects | CANBUS backbone or branch wiring issue | Inspect CANBUS backbone and branch harness connections |
| IMU intermittently disconnects | CANBUS backbone or branch wiring issue | Inspect CANBUS backbone and branch harness connections |
| SCV controller intermittently disconnects | CANBUS backbone or branch wiring issue | Inspect CANBUS backbone and branch harness connections |
| No communication with the SCV controller | Incorrect hydraulic interface selected | Verify the correct hydraulic interface is configured within Level COMMAND |
| No communication with the SCV controller | Incorrect SCV CAN baud rate | Verify SCV CAN baud rate configuration within Level COMMAND |
| No communication with the SCV controller | Unsupported tractor or SCV configuration | Verify tractor compatibility and supported hydraulic interface type |
| Tractor 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 |
| CAN joystick not detected | Unsupported joystick configuration | Verify joystick compatibility and configuration |
| Level COMMAND reports no communication with the ECU | ECU power or ground issue | Verify ECU power, ground and fuse connections |
| ECU powers on but does not communicate with Level COMMAND | Incorrect ECU firmware version | 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 |