kiev wrote: Now to consider how this plays for OBC failure--
And also how to repair an IGBT in the Waffle Plate™. Layout (for minimizing inductance and maximizing heat sinking) is probably too important to have something external grafted on. Plus, the IGBT probably failed shorted, and so needs to be removed from the circuit. Even if a drain or source lead fused open circuit, you'd probably want to remove the dead IGBT so it didn't add to gate-source capacitance.
I have a Nissan Laef now, but it turns out that they also have a Nichicon charrger, a bit different in detail (e.g. one large can capacitor in place of 3 PFC PCB capacitors), but similar in broad terms, I believe. Evidence is starting to trickle in of Leaf OBC failures, though I suspect they are nowhere near as prevalent as iMiEV OBC failures.
[ Took a laef from Kiev's book to defeat the stupid auto-links. ]