You are here

Is a physical connection between the ECM and ELD required in order to establish integral synchronization with the engine?

No. The ECM and ELD may be connected by serial or Control Area Network communication protocols. Hard wiring to the J1939 plug and Bluetooth connectivity are examples of methods of receiving the data from the ECM or vehicle data bus.

Did this answer your question? If not, please email ELD@dot.gov or call 1-800-832-5660 for more information.

Last Updated : April 21, 2017
Submit Feedback >