Ferrari Mailing List: Re: Electrical Irritation

[Mike Fleischer (themightytoe]

Agree with Jim,

Also check the car's other voltage regulators to things like the ECU(s).

That said, a kill switch on the terminal while charging the battery and 
storing the car would at least keep the battery charged.

Mike


On 1/30/2011 3:55 PM, Jim Conforti wrote:
> On 1/30/2011 2:29 PM, Charles Perry wrote:
>
> > So normally my troubleshooting would start with just pulling fuses and
> > links one by one until I see the short disappear and then start
> > troubleshooting the attendant system.
> >
> > Any better ideas out there?
>    Make step #1 disconnecting your Alternator B+ lead, then check
>    your Ohm reading again.
>
>    I generally find that a short like 8ohms isn't going to "just appear"
>    unless an electronic part fails.
>
>    I always suspect the diodes/regulator in the Alternator first.
>
>    Why?
>
>    I've pulled every fuse on friends cars multiple times only to find
>    the "drain" doesn't go away and that it was the Alternator.
>
>    at a nominal charging voltage of 13.5v, the 8ohm "drain" is over 1.5A.
>
>    So try the alternator first, and failing that - start pulling fuses
>    and get ready for an expensive component replacement.
>
>    Jim
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