Transflo T-Series ELD Diagnostics and Malfunction Codes

As an admin or advanced user, use this article to troubleshoot problems, errors, locked accounts, or malfunction event codes with your ELD, HOS, and Telematics equipment.

Sometimes, users will ask, "Why does my ELD say no connection to the vehicle?"

Verify that your ELD has power and all 3 lights are lit up. You might also need to reset the ELD using the Mobile+ app (see https://knowledge.transflo.com/mobile-plus/Content/03mobi/mobile-plus-register-refresh.htm).