PCM pinout and wiring diagram

[pepper]

Was hoping i could get some help. been having this issue with my 2010 4.0L v6 Mustang. As of recently I've gotten this P1633 keep alive power voltage too low code the car cranks but doesn't start. Fuel pump isn't powering on as well. The fuse for keep alive memory is fine. Everywhere I look says the next logical step is to see if the PCM is getting a constant 12v, however, everywhere I look i can't seem to find a viable wiring diagram and/or PCM pinout for the car. Can anyone help me out with this? Thanks in advance.

 

[Juice]

Low voltage code, what is the battery voltage & age?

 

[pepper]

when i initially started getting the code the battery voltage was really low. around 10.9v-11.3v. The battery i had on the car was from another car so i can't tell you the age of that battery but I have since changed the battery because after seeing what others were saying they recommended i change the battery. So the battery that's currently on the car is brand new. The current voltage is around 12.4v