I have an 1980 Euro 450 SLC, with some old car issues!! When I switch on the left blinker the left High beam starts flashing with the blinker. And when I switch on the lights the left blinker indicatoer lamp in the cluster lights up as well.

Then when I pull the light switch so as to switch on the front fog lights the wipers come on, when i switch off the foglamps i.e push back light swict the wipers goes off.

what can this by? I am thinking combination switch for the blinker headligh issue, but surely the combination switch cannot cause wipers to come on if foglights are switched on??

Please help me to sort this gremlin out.