Need Some Help Night Owls...Trouble codes

[buzzfx4]

So on my way home from work my check engine light came on. I pulled off and turned off the truck. I used my gryphon to check for codes and it picked up two. The first on was a P1000: OBD system readiness test not complete and a P1233: Fuel pump driver module disabled or off line. This is what the programer told me which I'm not quiet sure what the first code means but the second one I would have to guess is a fuel sending unit ether an injector or at the fuel pump. The thing is, truck was idling normally and there was no funky or raw fuel smell from the exhaust before I shut it off. There might have been some loss of power while pulling over but not enough for me to notice then.

Since I couldn't come up with any hard evidence to not try to make it home and it was 10:30 at night, I put the programer back to stock, cleared the codes gave it a second and started it up. Everything started fine not check engine light, nothing. I finished the last 24 miles with no problem. I got home, shut it down, did a walk around listening for any excessive pinging from the cats which there was none. No visual problems or audio clues or smells. I got back into the truck started it up again and it through the codes again. Not sure how I drove 24 miles at highways speeds with no problems to get home and have the truck site for 5 min and then through a code on start up.

Any suggestions on what the codes mean and what to do will be helpful,
I have an early start in the morning and need the truck but don't want to cause more damage.
Thank you,