I have a diagnostic code PO740 and don't know how to fix it

Question

I have replaced the PCM because it was shorted out with a 36 volt battery charger. I replaced it with one from the bone yard but used the prom from the original. I now have a working computer but a code PO740 continues to come up. I have 12 volts at the ignition, my fuses are good, and I changed out the TCC solenoid. I still have the same problem. Can you help me?