In article , Dave D
says...
If you have a bench power supply which can put out 12V or 13.8V then it will
make troubleshooting a lot easier than trying to do it in the car.


I was already thinking of using an accumulator charger to make some
testings.

The fault could be of a thermal nature, so heating parts of the circuitry
with a heat gun or hair dryer until the fault starts, then cooling
individual components with freeze spray should help you find the bad
component.


Thank you, I shall try that.

Your English is perfectly understandable by the way, no need to apologise at
all. Bear in mind that most of us native English speakers cannot be bothered
to learn a second language, so I admire anyone who can master English to the
degree you have.



Thank you, those (or should I say 'these'?) were very kind words.

Well, I was learning English since 3rd grade (basic school) till end of
the high school (not extra classes, only as one of the compulsory
subjects) and I was always lucky to have an excellent teacher. Later,
we've had some techinical English classes at the university - with
American teachers. Bonus is that we are watching movies with subtitles
(I am from Croatia) so I hear English practically every day. +, I've
had a lot of conversations with Hungarians, Russians, Australians,
Belgians & Germans. That is why I am not sure if some of my sentences
sound funny to the native English speaker, because each of the former
mentioned have their own 'English grammar' :-)) For an example, in
Hungary you can hear: 'I have to toilet' instead of 'I have to go to
the toilet'. That is because of the nature of their language applied to
the English language.

And, of course, I occasionally use small Webster's English to English
dictionary to find out the spelling when I am not sure :-))

BTW
I must say, the education in our region (former Yugoslavia) was very
good, it was for free (as was the medical care) but very good, I would
say outstanding, until the war. Nowadays, I am not sure, in fact I can
say the education is not so good as it was. Furthermore, There was a
lot off different languages that one could easily learn because we were
all mixed, from the six former Republics. So, everyone older than 20-25
can understand Croatian, Slovenian, Macedonian, Serbian, Bosnian, not
to mention the dialects. Even Russian, Slovakian, Polish are not too
hard to understand if you would have lived here. I have always been
interested in learning languages so I have even learnt some Hungarian
during my 1 year working period accross the border (and believe me,
Hungarian is not so easy to learn :-) ).

OK, this was rather offtopic, but you (or someone else) may find it
interesting.

Thank you again for answering me,

Best regards,

--
Chupo