Hello Looking for a little Assistance as I have dug through a good amount of threads here and not stumbled across anything that makes sense

replaced rear main seal when I removed fuse block and modules I did not have a chance to remove power trunk full of stuff so carefully disconnected everything and taped positive leads as to not short anything
did job went very smooth all connectors and wiring back where it belongs now no power in car have power to remove a cd from CD player and that is about it have power at both post on fuse block under hood just nothing interior or exterior working now new battery just recently all was great till after i tried to turn the car and nothing at att

 

Are you positive that you reattached the correct wires to the fuse box? There should be 2 large red wires on the front one and 1 smaller red one on the rear (closest to firewall). Did you tighten the bolts holding the fuse box together untill it clicked a couple of times?
I am not sure of your terminology.

 

The red lug on the top left is a single wire to the Electric power steering motor Under the red cap on the lower left is a wire live from the battery and another wire that goes to the starter. Check those 7mm bolts as Donbrew mentioned, also push every fuse and relay are firmly in place. Check the fuse panel in the passenger foot well behind the plastic cover in the console

 

This will also give you directions to fuses and relays, like fuse #7 in the interior fuse box is for the instrument cluster

https://fuse-box.info/chevrolet/chev...uses-and-relay

 

50 amp fuse located back by the battery.

 

That’s it to the left of the red arrow

 

Not clear exactly what is the exact problem. Title says only interior power is affected.
The 50 amp fuse only power the computer part of the BCM.
We covered both possibilities, maybe the OP will come back someday to comment. They did come back after my first post.

 

Sorry I have been a little Busy

post may be a little hard to understand

both wires on front terminal secured and rear terminal next to firewall has small wire that feeds PS motor

Did tighten the 7mm connectors bolts for the terminals till they stopped did not know if i should go more on them or not i did one and it clicked did want to over torque and break anything so all others are tight

no power to any thing in car its the strangest thing rear fuse at battery is good

I will upload some photos here later

 

SOLVED

when you think a connector is tight better check procedure donbrew mentioned clicking when tightening the 7mm bolts down for the fuse block I did not do so As i wanted to not break anything
tightened down connectors and good to go power and running as it should thank you

as well noticed this page explaning the clicking as well
https://www.yardzoo.us/auto-yourself...e-box-removal/

 

I believe that video is in this thread.

https://www.chevyhhr.net/forums/how-...rmation-59520/

I replaced my transmission mounts a month ago, I had my fuse block apart but didn’t film it, to show the actual click and tighten events to reassemble the under hood fuse block.