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I accidentally installed my battery the wrong way and I'm pretty sure I blew the main fuse but when I check the fuse box I don't see anything that's labeled main fuse. Where is it?
 

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Demon Spawn
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I accidentally installed my battery the wrong way and I'm pretty sure I blew the main fuse but when I check the fuse box I don't see anything that's labeled main fuse. Where is it?
I believe it is in a holder on the battery cable near the battery diagram here: https://www.jimellismazdaparts.com/products/Mazda/Mazda-3/FUSE/1829430/BCW867S99A.html it is #67-099P in the diagram, looks to be "made into the cable" (held in with bolts) and has both ends of the battery cable running off it, 1 end out to the alternator, other to the battery positive, follow the positive wires back from the battery you should see a square fuse possibly in a plastic case that says 120A on it and this will be the fuse you need.
 
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