transmission does not shift from 4th to 5th gear with code P2716

Question

my old car is Toyota Camry 2007 V6 3.5, had the troubles, with 3 codes:

Red Code: P2716: Powertrain - Pressure Control Solenoid ''D'' Electrical
Code: P0746 - Pressure Control Solenoid "A" Performance or Stuff Off
Code: P0776 -Pressure Control Solenoid "B'' Performance or Stuff Off

Symptom:
It is not easy to shift from gear 4 to gear 5 (both automatically or manually),

i.e after putting the gear stick to D position and press accelerating pedal, the car is moving, then it will shift the gear number from 1, to 2nd, to 3rd, and to 4th gear (following the speed increasing), but it is not shift from 4th to 5th gear, hence the speed of car cannot go over 50 km/h

sometimes, it is shifted from 4th to 5th successfully, it will then move from 5th to 6th gear (the top gear of transmission box), the car will run so smoothly and quickly increasing the speed to 100 km/h and over.

Please, advise me what parts i have to purchase for replace the broken ones

thanks for your helps,

TonThat (mr.) Hao