When your M-Series device stops functioning correctly, follow the steps below to identify and resolve the issue.
Common Issues & Fixes
Problem / Symptom | Probable cause | Corrective action required |
1. Device not checking in / not on the map | 1.a. Device not activated | Contact your account administrator to confirm the device is activated. |
| 1.b. Device not powering on | Turn off the machine’s engine and wait for all LED indicators to power down, then restart the engine, and let it run uninterrupted for at least 30 minutes.
Check the device's power connections and wiring for damage or disconnection.
Refer to the Installation Guide for correct wiring setup.
If installed, check the in-line fuses and replace them if blown.
Ensure the B+ power connection is always on (unswitched).
Verify the Engine Run (White) wire receives:
|
| 1.c. Device is damaged | Replace the device. |
| 1.d. GPS signal is obstructed | Move the asset outdoors and ensure that the antenna has an unobstructed view of the sky.
Avoid mounting the device near heavy metals.
Check the external antenna to ensure wiring is intact and correctly connected. |
2. In-line fuse always blows | 2.a. Electrical short wiring harness | Replace the wiring harness. |
| 2.b. Device shorting out | Replace the device. |
CANbus® Troubleshooting
The following table outlines solutions to CANbus issues on M-series devices.
Problem / Symptom | Probable cause | Corrective action required |
1. No CANbus values | 1.a. CANbus not communicating | Check CANbus wiring. You may need to reverse CAN (+) and CAN (-) signal wires. Refer to the Installation Guide. |
| 1.b. Missing termination resistance | Ensure the terminal plug is installed and measures 120 ohms. |
| 1.c. Control panel issue | Check the settings in the machine’s control panel guide. |
2. Incomplete CANbus data | Incorrect device configuration / Customer ECU issue | Contact your account administrator. |
3. Engine is running, but the data says otherwise | Engine data not transmitting / No CANbus data | Check the CANbus connections. |
Note: If you're experiencing a CANbus issue, first ensure that your device has completed any pending OTA (Over-The-Air) updates, as these are essential for accurate CANbus data transmission.
If you need assistance with completing OTA updates, please reach out to our Customer Support.
LED Indicators Guide
All M-series devices have four status LEDs:
"Cellular" LED (Orange)
GPS LED (Green)
Bluetooth® wireless technology LED (Blue)
Diagnostic LED (Red)
Please refer to the tables below to interpret their behavior.
“Cellular” LED (Orange):
Condition | LED |
Modem off | Off |
Modem on and searching | Slow blinking |
Network available | Fast blinking |
Registered, no inbound acknowledgement | Alternates from solid to fast blink every second |
Registered and received inbound acknowledgement | Solid (not blinking) |
GPS LED (Green):
Condition | LED |
GPS off | Off |
GPS on/No GPS fix | Slow blinking |
GPS time sync | Fast blinking |
GPS fix | Solid (not blinking) |
Bluetooth wireless technology LED (Blue):
Condition | LED |
Modem off | Off |
Modem on and searching | Slow blinking |
Connected | Solid (not blinking) |
Diagnostic LED (Red):
Condition | LED |
Machine run input off/Start-up | Off |
Normal operation | Short blink every 4 seconds |
CANbus and Modbus disconnected | Solid on |
Modbus disconnected | Fast blink (0.5s on - 0.5s off) |
CANbus disconnected | Slow blink (1s on - 1s off) |
Solving issues with the LED indicators
If you find that the LEDs on your M6, M7 or M8 devices are not working:
Check wiring to ensure all connections are connected correctly, intact, and in good condition.
Run the machine’s engine uninterrupted for at least 30 minutes to allow the device battery to charge and exit sleep mode.
💡 Tip: If issues persist, please contact our Customer Support team and include the following:
Asset Number
Device Serial Number
Use the Messenger at the bottom-left corner of this page to create a support ticket.
💡 Tip:
Need more help?
Click on the Messenger icon in the lower left corner to get in touch with Customer Support.