Can anyone tell me the location of the 100 amp junction board and/or its fuze location? I have a P1575 code and info on line said to check this fuze. I have already checked all the fuzes in the underhood and underdash boxes (IMA light and check eng are on, no charge on IMA battery nor showing charge, initial turn on illuminates all the guages ok). All fuzes in boxes look ok. I am expecting this fuze is located elsewhere near or on the board.

 

It is located behind the back seats, on the IMA panel. There are posts for this if you do a Google search with more in depth info on where to locate it.

Be careful playing around back there. That's where the IMA batteries are and they will electrocute you. Make sure you know what you're doing before you start.

 

Thanks. I was able to locate the fuse through info provided on the Insight Forum. I was able to replace the 100 amp fuse that was bad and now the car charges, assists, autostops, etc., but I am afraid the battery (8 yrs, 100K miles) is deteriorating (code P1449-78 and P1600-69). Everything I read on forums points to either attempting to rebalance (overcharge/trickle) the cell/cell sticks to get each to a "same" capacity to extend the life of the battery and continue to do so on a regular basis using a grid charger or buy a new 144V battery (Honda or a "better substitute battery) and do regular grid charging. Continuing to drive the car without doing anything evidently "destroys" the battery in a few months. I don't know what the "destroyed" state is and whether the car will still be driveable using just the ICE. Indications are at least the 12V battery may not be charged at idle speeds since the Civic does not put out sufficient power at the lower rpms to charge the 12V without the 144V battery working and in place.

Interesting enough the same battery is warrantied by Honda for 10 yrs/157.K miles on the Insight for the same model year. Whether Honda will do a "good will" type deal on a replacement by either reducing/sharing the cost of a replacement given my car is a Civic (8 yr/80K and I have 8 yrs 3 mos/99.8K) is something I might investigate.