My car wont crank or start.

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I ran a remote wire to a relay in the fusebox(RUN/CRNK) for my subwoofers and everything worked fine and sounded good. I turned truck off and went to sleep but when i tried to go to work in the am Everything in my car was working perfect before i installed the remote wire No starter click No crank No start The relay i hooked up too is not blown I have checked every single fuse and relay in the box and nothing is blown and everything electrical seems to work just fine All my electronics come on when i turn the key I disconnected the remote wire and the power wire from my sound system so that its not interfering with anything anymore My battery is not dead Throwing code P1862 DRIVER 5 LINE 2 The (ENG) fuse is pulling 11.63 steady The (ECM-IGN) fuse is pulling 11.63 steady 2008 yukon xl 5.3/4l60/4wd

How long has your 2008 GMC Yukon XL 1500 had this problem?

Today