I have tested the roof electronics control module, only one code as always, also when the lightning was working.
004 - no signal communication/intermittent
Then I went to the door control module, run the output tests and walla, the ambilights work. As soon as I turn the output test off, it stops working. The same for all four doors and their control modules. So the lightning itself is working.
Tried the button on the overhead panel, no luck, but the button itself works, I have tried it with the “City” mode.
Otherwise 270.000 miles and still going strong!
What could possibly be wrong?
