electrical leak in a car 

1.- Disconnect the positive terminal
2.- Be careful that the positive terminal does not touch ground
3.- I put it in amperes DC multimeter
4.- The red wire connect in 10 amperes
5.- Multimeter probes one at the positive wire terminal and the other on the positive terminal of the battery
6.- The multimeter should not mark more than 0.300 if reading above that there is a leakage current
7.- Go to the fuses
8.- With the multimeter connected in the appointed position , if the multimeter is over 0.300 remove one at the time fuse, read if the multimeter reading down that is the fuse site the leak
9.- Read the manual which is fuse
10.- and fix the problem

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