No start no Crank no communication with ECM

hello there in need of some direction here , I have an 2005 Toyota 4 runner  with no  ECM comm  and no Crank , I have check and follow the diagnostic Flow chart for this 
ECM has been replace not by me I have the engine light on check the CAN H & L   all seem ok Fuses ext starter AND relays,  one  shot replace J/B  because the STA not STA2  had no reaction when try crank 0 + or - to that fuse check power and grn to ECM all pass ,  eny suggestions on where to look  next.

Is there any communication codes in other modules?
Any other modules that also will not communicate with your scanner?
Not doubting your methods, just curious, how did you check the CAN circuits?
I'm sure you are well beyond this point, but I'm the interest of covering bases, powers and grounds need to be load tested at the PCM.

Good morning Noah, yes can H L 2.4 to 2.2 more or less after this post I whent back to check again all my pin value on ECM and found a 12 v on pinE4 -23 VC 5 V REF I unplug all components related to that no change only with the short pin fuse goes away definitely a short wire there im tracking this forward, and to answer your question yes there's communication with all other modules and on ly 1 code for the rear door jam protección something ,thankyou for the input let me know if something pops up .

Sounds like you're on the right track. Keep us updated

Update ,found the culprit,   j/c code IC4 connector bottom left kick panel  red wire  got hot for some unknown reason melted some of inside of connector making contact with blue red 5 volt ref wire , red wire related to off the market radio  pull damage pins and re direct connection outside bulk connector install a newly rebuild ecm  program and WALA .back to normal operation. check link picture for ref.https://photos.app.goo.gl/UAWsUQK6gXQmtGMb9

Great find! Thanks for updating us with what you found.