Originally Posted by Poonugget

Hey everyone!

Ill be quick and to the point.

Car history:
*Gifted this car, mechanic said the IMA battery was toast.
*Assist, charge, and battery gauges all had 0 bars.
*12v system is not charging
*This was an abrupt shutoff. The PO got into the car, and it started with the 12v starter, and the IMA was not working at all... No sounds or oddness. Drove great to work, then leaving work it was like this.
*After looking at forum posts decided to check the 100a fuse located in junction box and found the issue was the fuse!
*No continuity between the 2 blades on the fuse.

I would like to test the battery if I can, however there is a lack of diagrams and information of testing this battery... All I have found is "bcm connector points" or "11 points to test" however, I do not know wtf anyone is talking about. There are no numbers anywhere except a 1 and a 2 at certain ponts.
The battery is removed, and the Jbox is removed from the battery, do I need to remove the next part to test the battery points?
Does anyone know where to buy that 100a 450v fuse that is located on the back side of the Jbox? Assuming Honda dealer is the best option?
Is there something in line that would cause the fuse to blow in the first place? Something that would blow a 100a fuse seems pretty hectic.
I am really just needing a diagram to see how to test the battery cells to see if they are within range? I have tested a few spots and all are 15.60, 15.59, 15.58. but idk where these "11 spots to test" are, and what I am looking for.
I am sure this info is here on the forum, however I have not been able to find it.
Thanks guys


I am pointing to the location of the fuse...

The culprit