Error codes 20 / 21 / 22
I have the following error code(s) :

20 : ELD, which I don't have, how to disable the error
21 or 22, depends how I connect the wires.

I know that the green yelow wire goes to A4 then I have only the 22 error code

I know as well that the light blue wire goes to D6 but I don't have a clue were the black wire from the solenoid should go.

When I connect it to the ground I have the 21 error code.
Whe I disconect it I have the 22 error code again.

On the manual scheme the black wire points to a little text box "K".

Help please !!!!

I am doing 350 km with a full tank !!!

Help please