Dave Plowman (News) wrote:
In article et,
Dave Liquorice wrote:
Wonder if it's the Ford designed system where the engine ECU controls
the alternator? IIRC, called smart charge.

Donno, but as the vehicle is also chewing through bulbs it indicates
that the entire +v rail is elevated not just the charge circuit.

But the alternator output is connected directly to the battery - so apart
from some voltage drop which should be tiny, the two are the same.

*Should be* is the operative phrase here.