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Old 09-17-2021, 07:51 PM   #24
I see dead caps
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Default Re: Catapillar ECU repair, need N548AB replacement?

Originally Posted by CapLeaker View Post
Nope. No fuel, as there isnít any HV produced. There is no short to the gate on both, so the gate driving circuit is fine.
Hopefully not the case here if both are measuring the same, but I've seen MOSFETs that blew hard enough that they went open circuit after the event, while acting as a fuse for the now dead-shorted gate drive.
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