I run a Fiesta diesel 1994 MK3 as my daily hack.
I have a problem with the heater plug circuit, the heater plugs themselves are fine, I know this because I link them direct to the battery every morning via a jump lead and it fires up straight away.
My first thoughts were that the problem was with the heater plug relay,
I have tried two different relays, one from a scrap yard and a new sky parts unit but still nothing so I do not believe it was the relay in the first place.
My questions are: a) is there a fuse that could have blown somewhere (I cant find one in the fuse box)?
c) Does anyone have a wiring diagram
Any feedback is gratefully received
Thanks
David





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