2015 prius c u0293 and u0101

Hi I have a 2015 Prius c powers on but no engine start, no codes with most code scanners. replaced 12v aux battery but no fix, checked all mini fuses pertaining to this issue, all fuses good.

Autel scanner showed codes:
u0293 (no communication with HV system)

u0101 (no communication with transmission control module TCM)

when using snap on solus pro scanner. Immobilizer no communication, wireless door lock (key fob) no communication with key (unknown key). i assume this is because no hv ecu communication

Someone with the same issue on a forum said it was their HEV fuse. (I can’t find where that is, I assume it’s the orange hv safety clip/fuse, I opened it up saw a 125A fuse inside)

Another video said it’s the hv battery voltage sensor for codes u0100, p0b47 and u0293 but a viewer stated dealer said it was the hv ecu needed to be replaced and they had codes u0293 and u0100

Anyone had this issue ? Help