Leave the interface permanently connected?

Hello.

Can a CAN<->USB interface be permanently connected to the vehicle?
I can imagine that not all ECUs would go into a sleep mode, and the battery could drain quickly as a result.

I'm envisioning a conveniently accessible USB port in the center console – instead of having to awkwardly maneuver that bulky OBD connector over the footwell trim.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

If no data is flowing from the PC through the interface, it should not have any influence on whether or how quickly the control units go into sleep mode.

However: The interface draws power from pin 16, which is connected to terminal 30. Therefore, as long as it remains plugged in, it will draw current. A few hours or even overnight is not a problem, but if left plugged in for too long, it could drain the battery.

If you really want to connect it permanently, it might be a good idea to modify the power supply to use terminal 15. I would create a second OBD socket that is electrically connected in parallel with the original socket (except for the power supply).

-Uwe-

Hi,

I once had a permanent USB cable running into the interior of the car. The connectors weren't plugged in by default, so whenever I wanted to read out some data, I would simply open the hood and plug in the connectors.

Best regards.
knocker