16v passat electrics - hollowpoint

Just wondering if anyone has simple knowledge of '91 passats please. Bascially several things went at once and it's not fuses:

wipers & screen wash
heater fan(s)
front fogs
rear demister
reversing light

Help!! Where are they all linked? Is this a subsystem with a master fuse or something? Are they all carried alone a certain wire which could have been damaged?

I can't understand the Haynes manual!

Many thanks for any help.

Desperate and struggling to see in the rain...



Value my car