Electrical issues, pulling my hair out! Please help
 

I have a 2002 Audi A4 1.8 Quattro and the other day these all stopped working as follows, the windshield wipers, hazard lights, dash lights, turn signals, license plate light, and tail lightslights .
I've checked the bulbs, I've went through the fuse box, under the dash I replaced the relay 370, I've messed with the light switch, replace the hazard button, and messed with the ignition all with no luck. I have headlights but no high beams and I also have brake lights, none of this makes any sense to me and I'm going F'n crazy. Does This happened to be a problem in the ECM and there's nothing I can do about it other than getting new ECM ? Any input or help would be greatly greatly appreciated