Automated Eaton 10 speed shifting weird

[Satch]

Well some symptoms have been duplicated. The truck on occasion still hesitates to shift from 2nd to 3rd and 7th to 8th without throttling the accelerator. Without letting off within a few seconds or she'll scream at ya. I have taken the necessary steps in cleaning corrosion from battery cables. Applied the sweet and sour sauce (not actual) to all battery cables to prevent corrosion "hopefully". I've been told the computer for the transmission is beside the transmission. I can literally hear a high pitch frequency everytime the shifts about to occur from my passenger side kick Panel. Is that not the powertrain control module? Does that mean two computers for transmission? I haven't looked around transmission yet