ZF 4HP 16 TCM p/n96286029 wiring diagram needed?

Flashing PWR light in dash instrument panel, transmission slipping, loss of power, R & D gear engagement rough. The problem is intermittent, sometimes after starting engine, PWR light remains off, transmission operates normally. Then after driving a while, PWR light comes on and symptoms return. The computer scan revealed 3 codes related to TCM or transmission. Sorry, but I don't have the codes. Suspect TCM or solenoid issue, but you're the experts. Have tried multiple times to reset TCM only to have problem return. VIN KL1UM92Z97K448992. Please help.