ECM and PCM code check engine light

[06DieforDiesel]

So long story short I was messing around trying to fix a problem with my cruise control and making the annoying seat belt reminder ding go off in my 08. After turning the belt reminder off I turned on my truck to check and see if it worked and my check engine light came on and stays on. I checked it with a scan tool and it said it was an ECM code 2610. How do I fix this and what could be the cause of this? Thanks in advance and I could really use these answers in a hurry