My car is throwing code P1682

[Rizaki]

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

I replaced the ignition switch and it still wont start



The (ENG) fuse is pulling 11.63 steady

The (ECM-IGN) fuse is pulling 11.63 steady



2008 yukon xl 5.3/4l60/4wd

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

I cannot personally assist you with your issue, but other members of this Forum much more knowledgeable than me in this area will chime in.

 

[swathdiver]

I

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

I replaced the ignition switch and it still wont start



The (ENG) fuse is pulling 11.63 steady

The (ECM-IGN) fuse is pulling 11.63 steady



2008 yukon xl 5.3/4l60/4wd

I don't even show that code for my 2009 or 2013. But what I can see is your dead battery at 11.6 volts.



When a battery's state of charge is below 65% after sitting overnight, it's time for replacement.

 

[Fless]

I

I don't even show that code for my 2009 or 2013. But what I can see is your dead battery at 11.6 volts.

View attachment 436136

When a battery's state of charge is below 65% after sitting overnight, it's time for replacement.

Most probable. However, if either of the main (pos, neg) battery cables is bad, that could cause a voltage drop between the battery and the fusebox.