Nissan Repair: electrical

Question
I have a 2006 frontier the battery was installed backwards, now it blows the 40 amp fuse on the right side of terminal the one with the red & white wire after the engine is started

Answer
Hi Harold -

Does that 40A fuse have a circuit name? Are you speaking of the fuse in the box on the fenderwell?

Also, you will need to follow the wires from the battery to see if any wire is still reversed.

If you send me a photo of the connections I can probably figure it out.

LMK
aloha
Calvin