1994 Ram 3500 fault codes

Yesterday I replaced a faulty crank sensor before heading on a two week trip. 20 minutes into the trip I get the check engine light come on.

I have returned home and ran the codes using the key dance.

I get 12, 51 and 53

12 - The battery has been disconnected and the computer (ECU) has been reset.

51 - engine running too rich or lean

53 - Logic module fault

Do I take these seriously? I'm meant to be away for two weeks. Should I wait to see my mechanic on Monday and leave then?
Author: Dragonola