In respect of this current problem, is the wiring as manufactured, or is a so called up grade possibly involved?
A connected battery load comprises what is the equivalent of a huge capacitor, which will normally safely soak up an over voltage. A problem occurs when simultaneously with a high voltage fault, the fuse link is opened thus isolating the battery.
This aspect requires further investigation, but the actual OEM wiring associated with alternator has never been exactly confirmed and appears to be at odds with the wiring diagrams. Any takers?
