UK Car Repair: Ford Fiesta 1984 MK2 - Wiring diagrams, ford fiesta, wiring diagrams

Question
I need wiring diagrams to make my headlights work properly (diagrams or written texts explaining how the electrical wiring is supposed to be done. I assume there are wiring-diagrams to be found, but haven't found any using regular databases. Can anyone help me, please?

Answer
I do not have access to the diagrams but most light circuits are the same. Presumably you have checked the fuses. If they don't work on high or low it would appear to be a feed fault. If the fuses are good then the next step would be the switch.  If you have a test lamp you should first check feed to and from the fuse then feed in and out of the switch. There is always the faint possibility that both lamps are bad!