At the moment I'm totally lost. Wanted to fix the electrical problems, as are:

- city lights are not working, only with the light swith on drive lights (switch fully pressed)
- hazard light not working (absolutely not) while indicators work perfectly
- headlights not working (no power on the lines)
- some lines that lead into the central electric should, from my understanding, be live wires. However, they are not, doesn't matter if ignition is on or off?

I have the original Fiat circuit diagram, however this contains no color code for the lines. And the second diagram I have seems totally useless.

I am not into electrics, so at the moment I am at my wit's end. Does anyone have a comprehensive circuit diagram? (Series 2 model).

What was the last thing you changed / worked on, before this happened?
Or it just happened out of the blue?

One complete day of drudgery and the electrical problems are ... solved. However, one mess leads to another and I had to change the starter, because the connector for the small cable broke (can be soldered I assume, but I had a rebuilt starter in the garage anyway - so I can take care of the broken item one day). Awful work if you do not have a car lift at your disposal . Most problems were due to the fact that the live wire from starter to fuse box was not connected. This fixed, all circuits except the drive lights worked (high beam ok!) - this was due to a bad wire connector that I fixed by simply cleaning it thoroughly. So, now the drive lights would work too - however, I will connect them via relays to get better lighting (had this already before, but now I will use even thicker lines and route it properly). Will make the wiring tomorrow or on Sunday. By the way, connecting the lights via relays is something I strongly advocate for every Mirafiori out there 

So, one issue solved, others to come...