Quote:
Originally Posted by dardeshna
The bad part - the damage. Apparently our VRM is shot, our PCM may be nonfunctional, and our PDP only supplies power to certain rails. Is this a problem that someone else has ran into and had to fix? Or are we just out of luck?
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Interestingly, none of these are the failures I would expect.
The VRM is reverse polarity protected. The PCM is not as explicit in the documentation, but I thought it was as well.
The PDP outputs are just copper, to damage it like that you have described, you would have had to fry the traces off the board. Are you sure it isn't the devices attached to those rails that are damaged?
Your motor controllers are the most likely to be damaged by a reverse polarity event.