That code I guess is for the trans. I read some old posts about it, and checked the resister on the frt drivers side and got 12.2 ohms. Any further help would be great.

 

That resistor does not play a part in the P0745 DTC. This is from the FSM:

DTC P0745 LINE PRESSURE SOLENOID VALVE

Description

The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.

The line pressure duty cycle value is not consistent when the
closed throttle position switch is ON. To confirm the line pressure
duty cycle at low pressure, the accelerator (throttle)
should be open until the closed throttle position switch is OFF.

The line pressure solenoid valve is inside of the transmission. Read the FSM about this. It is in the AT section (Automatic Transaxle) starting at around page 168. I say around page 168 because each year's manual is a little different. It helps when you tell us what year your car is.

If you don't have a FSM, you can download it from here:

http://boredmder.com/FSMs/Nissan/Maxima/

 

WOW Dennismik you are the man, thank you for the info. That will really help, thank you!