Electrical problems GJK – (almost) nothing goes more: AI, indicator, taillight,… – Cause? Manual?

In the context of retrofitting AHK I “deleted” the GJK: Electrical is not sooo heavy (for this I also had a company letter). When determining the wires on the rear lights I noticed that the rear light is not working on the left side and no electricity is coming. Checking the –super achievable – fuses in the engine compartment resulted in a defective 7.5er, which I replaced. Previously in the engine compartment the small ones tested without defective. When pulling the dashboard fuses with pointed tongs there was once a short time a with the plastic gripper you can’t really pull the small fuses, because you have to squeeze them down (with other cars it wasn’t necessary) The problem is now: there’s almost nothing left. Motor starts, but AI doesn’t work – everything is dark (even no tacho); no blinker, interior light, tail light etc. The alarm light is shining – but turn signals don’t work. With the electric AHK I come so naturally nic I didn’t trust myself on the road either. I checked: again all the fuses in the engine compartment (also the big ones); almost all small ones in the dashboard; disconnecting battery (helped with the Zafira more often). Condition unchanged. Operating instructions unfortunately there was no one. Which relays or other/hidden fuses could it still be? Closing is not possible. LED lights on FB. Rear flap is then closed. Doors but not. Windscreen wiper works. Ignition does not work. 20th fuse between the front seats is intact. What is striking is that you try to turn on the ignition (do not leave it on), a LED lights up in the AI. Between kmh display and nav display; just above the center of the speed numbers. If you then let on, the LED lights up. If you start without starting the ignition beforehand, the LED does not light up. When trying to ignition, you can hear a noise from the engine compartment. Even longer battery disconnection does not change anything. If you pull the right small 30A fuse in the engine compartment, it goes off (in the direction of travel the left of the two 30A fuses). What is the fuse for? Isn’t the manual as pdf? At Renault, I find only that of the model V – with other functions in the fuse box. At times, a buzz in the engine compartment was detectable.