[labik]

I've added a reversing camera to mercedes CLA many times.

But now the car has surprised me a bit.

It's a very poor US version, with H7 headlights.
The worst рдят is that it lacks the CAN-G (CAN E2) line (blue CAN).
According to the diagram, it should come from the ignition switch (N73) on pins 6 and 12.
These pins are unconnected in the EZS.
When I connect to pins 6 and 12 of the EZS, I get no signals. I checked them with an oscilloscope. No signal, and voltage 0V.
Of course, the EZS and HU5s1 are coded for the camera, the camera cover opens from the жеитяу, and I have good +12V power in the tailgate to the camera. The only thing missing is CAN communication with camera. How can I connect to the camera in this case? Replacing the ignition switch with a newer one is obviously not an option, as SCN, FBS4, etc. are not supported.
Attached are the diagrams I've always used.

[piotrek1994]

Before installing a reversing camera in these models, I always check whether the car has a "blue CAN" because there are models without it, and quite often, then I install a non-original camera with an additional module connected to the lvds monitor