fuse box

Hi everyone, I have been chasing an electrical problem for a few months now. No crank no start, no communication to ECU. After testing fuses today I found that engine BAR 1, 2 and 3 are not getting power. All other fuses are hot. Also tested all PJB fuses, all good. The fuses aren’t blown, just...

Hello everyone! I have a 2005 Mazda 3 2.0L M/T project car that I'm working on. There is this plug that goes into the bottom of the fuse box that is disconnected on my car. I can't find what it is supposed to plug into. I have provided pictures of the plug in question. Does anyone have this...