Question

We have several trucks with FMB640 installed. Some of them recently(1-4 days ago) stopped sending FMS data (fuel level, RPM etc.). Other devices work properly. All devices have same configuration and are installed identically. All vehicles are of same model and year.
scanfms command returns "0,0,0,0,0,0,0.....". Could this be device installation problem (considering FMS data was working recently)?

Interesting part:
Odometer source is set to LVCAN and is successfully returning data. How is FMS data not working but LVCAN returns odometer value?

Might be useful:
Recently we had some minor configuration changes which were sent to ALL devices(to those who failed, and to those who didn't). We fail to understand how these changes could affect FMS data (it was only some IO parameters changed from priority `none` to `low`).

Thanks for your time.

P.S. Tell me if there is any more info that we could provide to help.

Comments

We are currently facing the same problem with FMB640. Suddenly, FMS data stopped to be sent. No clue what might be causing this issue.

Answer 1

Hello.

We would like to analyze your issue. Please create a new query on VIP Helpdesk and provide devices IMEI, configuration and firmware version in the ticket. If you don't have VIP HelpDesk account, please contact with your Sales Manager. If you don't have any contacts with our Sale managers, please contact with them on our official website https://teltonika-gps.com/ and click on the "Contact Us" button. When you will click, please fill the form and submit it. Note: as a topic, please choose "Vehicle telematics".

Best Regards