I got a 96 dakota runs great no code light but when i put my scan tool on it it reads po748 got it with a trans leak and it was about a quart over full it has been drained new filter and corect level now would that have done something to the pressure solenoid ? any help would be great thanx

 

Clear the code, and retest. Since you changed the fluids, it may set the sensor during repressuring.

 

It may just have been a glitch. Try just reseting it and see if it come back. Posting exactly what the code means would help, so others don't have to look it up.

P0748 (M) Governer Pressure Soleniod Control/Transmission Relay Circuits An open or shorted condition detected in the governor pressure solenoid circuit or trans relay circuit in JTEC RE transmissions.
P0748 (M) Governer Pressure Soleniod Control/Transmission Relay Circuits An open or shorted condition detected in the governor pressure solenoid or relay circuits (4-speed auto. Trans. Only).