Hi,
For troubleshooting the CAN adapter please check this:
Wiki page link: Troubleshooting LV-CAN200, ALL-CAN300, CAN-CONTROL - Wiki Knowledge Base | Teltonika GPS (teltonika-gps.com)
Regards
Wiki page link: Troubleshooting LV-CAN200, ALL-CAN300, CAN-CONTROL - Wiki Knowledge Base | Teltonika GPS (teltonika-gps.com)