Truck decided not to start for me yesterday after driving for an hour. Turned it off and went to go restart and nothing. So wife broth he car and charged batteries off the car and it started after 20mins. Got it home. leaned battery posts and such as there was a bit of corrosion on them. Truck started up today. Turned off and wanted to see if it pulled any codes and here's what I got:
P0462- fuel level sensor 1 low
P2502- charging system output voltage
P0622- generator field control circuit
P2503- charging system output low
P2509- ECM/PCM power input signal intermittent
Any and all help would be greatly appreciated as it looks like I'll be using the wife's car for work tomorrow anyways....

The truck I have a 2003 5.9L 3500 4x4 dually.

Thanks in advance