ELECTRICAL FALLAS IN FORD MONDEO 2006

Good afternoon, I request your help to correct a failure in a 2006 Ford Mondeo, the problem is as follows: the alternator's regulator changed because I did not put a charge to the battery, when I took it to the technic And he told me that the regular no longer Serbia, that he had a bad connection in the cables that go for the regulator and arrange them, I personally change the regulator this time, I put it and started putting a load very well, but soon after I stopped doing it, what he noticed is that when he turned on the lights they looked very well clear and normal but when I made the changes from casualt And the battery went down, I think the fault can be in the light system, but I don't know how to verify to find the short.
If someone can help me I will be very grateful.
Marino Rossainz.

If you demand current and the regulator is burned you can have a failure in the diode bridge, if the lights are going well and when changing to short or long you begin to turn off, you may have a problem in the alternator and it is best to change it. Make a dough test. Turn on the long position, place the negative point of your tester in the battery terminal and the positive point of the body if it marks you 0 or close to zero more or less about 500 milliamperia means that the dough is fine. Do the same with the positive terminal and a positive current source such as the alternator terminal, if it marks 1 or two volts is fine, but if it marks you more you have a current problem. But as you say you should change the alternator.

Sorry are not 500 milliamps but 500 millivolts