DTC code P0753 is a tranmission code that indicates a fault in 1-2 Shift Solenoid Circuit Electrical. Two conditions set the code. 1) the VCM (Vehicle Control Module) commands 1-2 shift solenoid ‘ON’ and voltage remains high (B+). 2) the VCM commands 1-2 shift solenoid ‘OFF’ and voltage remains low (zero).
If you can get to Alldata, there is a trouble shooting chart that will lead you through the diagnostic procedure.
Hope this helps.