[r2p]

Hello everyone,
I received a used G20 speedometer and would like to test it, but it shows no reaction when connecting pins 5,6 (12V) and 11, 12 (ground), is there a defect or does this speedometer require a wake-up signal from the canbus.

I don't want to install this speedometer yet, because I don't know the mileage.

If have anyone a idea, without risk that the mileage may increase.

Thanks in advance.

[kristikapa]

I think activation is done by can messages from the car. So most likely you will have to emulate ignition on sending right can message to turn it on.

[r2p]

Thanks for your answer.
I also think that a CAN signal is necessary. With the F series, it still worked with 12V to operate the speedometer. I thought there might be another way, because then i virginized the eeprom before I installed it.

[BusyBox]

I'm also interested in reliable way/tools to reset mileage of these live cockpits. In my case it is bosch and car is 2020 BMW G01

[kiruxxx]

You need emulator for test on bench