Fuse Block issues

Hey guys hoping to get a little help.
I have a 2007 tacoma 4x4 automatic. I started to get Code P0500, and my abs light, parking brake light and rear Dif light were all lit up on my dash. My speedometer stopped working also stopped working when they were all lit up.
I started checking my fuses and they were all fine.
I have 2 fuse taps in for my onboard air compressor that I thought the connections were bad so I would play with them and the lights would turn off and everything would work fine.
The next thing I did was take the fuse taps out and put the original fuses back but no change.
I starting to shake the fuse block back and forth and the lights would turn on and off.
Im thinking I may need a new fuse block or have a loose pin in one of the plugs ?

 

Have you noticed any water leaks in the cab in that area, if not you may still need to unplug any connectors in that area and look for burnt or corroded pins.

 

I have a fuse that does that too. Cheap metal? I don't know. I just took a pair of pliers and gave each leg of the fuse an ever-so-slight twist, to help it maintain good contact.

 

So I pulled my fuse block out today and re checked all the fuses all plugs and relays. Everything looks fine no corrosion and all fuses have nice tight connections. I started moving around stuff on the back of block while truck was running and when I moved the flasher relay it would almost act a a button. My abs light and rear diff light would come on and off along with speedometer and blower motor. I took out the flasher relay and messed with where it plugs into and it turned the lights on and off. Also there is a click in the fuse block when they go on and off sounds like a click of a relay. I’m probably going to try and find a new fuse block. Or is there anything I’m missing that I should look into ?

 

The body ECU is in the fuse panel on the back side.