Hi Thomas,
This may help you, when I bought mine I noticed on the service sheets repeated work on the indicators by the Nissan garage.
When I finally replaced the engine and got it on the road,the indicators and hazard lights were really erratic, working one day not the next, the situation got much worse when I connected my trailer.
Then I smelt smoke.
It turned out to be part of the loom had rubbed right through on a very poorly finished and very sharp metal support behind the dash, just where a cable tie secured it.
If you look through the posting titles for :
'Now the b*****d has caught fire'
You will be able to see the photos I took showing you exactly where to start your investigations?
As I said this may help or you may have a different problem.
regards,
Chris