I'm making progress (sloooooowwwwllllllyyyyyy):
- Two connectors are plugged into the big roof light.
- One grey connector with two green wires coming from the big roof light.
One of the two connectors that plug into the big roof light (the green one with only two green wires) connects to the grey one. Which seems to connect to another connector inside the B-pilar. The latter connects somehow to the ECC. Which my car doesn't have (yet?).
Now all I have to find out is if this is correct:
- And the other connector has a brown, a black and a black and white wire connected to it. This last connector is where I think the taxi light switch goes.
- One has a brown wire, a green wire (that has nothing on the other end) and a blue wire going from one hole to another on the same connector.
... if this really connects to a second switch as I suspect at the moment and what the green wire is intended for.
Why are there two unused holes on one connector connecting both harnesses (9163205 and 3542605) together?
... while there are no unused holes on the other connector.