If they still do you have a wire chaffing somewhere on the body and the only way to find it will be by pressing the blower motor wire all the way back to the fuse and maintaining wires and inspecting. The good thing it looks like you have a hard snow. The bad part of it is that it could be found looking for it. It would be easier if you had a cardboard diagram to see where the circuits break off at and try to life the short from there. Good luck finding the unfamiliar.
Brings car into 21st century. Woodsport 8th July, AM Great to hear you are enjoying it Robin, they really do transform the Mk1, the C60 is such a nice unit.
Woodsport 20th August, AM I have a fully built spare 6 speed conversion in stock if anyone wants one of my marvellous gearboxes: b4wrc 20th August, PM Is it possible to fit the 6 speed gearbox with a supported shaft so that equal length drive shafts can be used.
Woodsport 22nd August, AM It is possible yes, because Mk3 Mr2 shafts fit the gearbox and also fit the hubs, the only issue is the supported bearing bracket, which on the 1zz has somewhere to bolt to, on a 4a-ge it does not directly figo car tank capacity up to anywhere with the 1zz bracket, but i have made adaptors in the past to hold the Mk3 supported shaft onto the 4a-ge block, now i don't have jigs for that part, it was so rare that anyone asked me to do that that i just did it in situ on the day.
Unless there is a Corolla or something which uses a C series gearbox and a 4a engine with a supported shaft setup from memory i think there is but will need to research it, then that would provide a plug and play supported shaft setup.
Ford Figo  Variants, Get price, mileage and available offers in India for Ford Figo  versions at CarWale.