2014 honda civic elitrical issues help please and thank you.

I had issues with my eletrical system I'm at a loss financially 😔 and trying to get a head start on my own here, from what i had delt it started with alternater simple fix over a year it was 12 more alternators warranties and 8 batteries burned up now it's the transmission funny thing I took it to a shop to have the cvt rebuilt and they told me trans is fine its eletrical but didn't specify prior to the trans going out I noticed at 80 mph it would act like it was being taken over by a governor, we know these cars for the 4 cylinder top out near 130, or lose gear then out of no where pick back up till it would only engage up to 30 mph then now nothing at all. I was told by a friend to check the pcm 1 amd two but I wanted to have a more diverse group give me a go at where I should start at this giving I am still novice and just a car detailer but have replaced alts and batteries, fuses and pullie tensioners at the used dealer I work at in-between my details any direction would be appreciated much. Apologies Grammer nazzies I'm running two days no sleep.

 

I'm no pro but could that be the limp mode kicking in? not letting you go past a certain speed, engine light comes on, flashes usually. doesn't let you go past third gear. pull the codes, go from there?