Hello, I need some help please.....I have a 1998 Chrysler Grand Voyager which up to now has been great with just normal yearly stuff to fix or renew.

However my front window wipers don't work.....my car has been with the mechanic now for 2 weeks, he has sent it to an electrical specialist who says it's a wire that's burnt out. Between them they cannot find the suspect wire so I was wondering if anyone could tell me if they've had a similar problem and how that was diagnosed and repaired?

I live in Spain and before someone says I really ought to change my mechanic/garage....my car is at the best one in the area. Sadly the nearest Chrysler dealer who also fixed them closed 3 years ago!

So if someone could help me I would be so grateful as we our mechanic is tearing his hair out
Kind regards x