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Discussion Starter #1
I had something unusual happen last night. I was driving down the highway when suddenly my GPS and stereo lost power (I have a powered GPS mount that piggybacks off the stereo power supply) and I got traction control and security alarm warnings on the dash. I also thought at the time that my automatic headlights went off, but looking back I think it was just the stereo touchscreen going out that startled me. I pulled over in a nearby parking lot and started to checking to see what still worked. Other than the warnings, the only things that were non-functional were the stereo and GPS. I turned the truck off and back on and the warning lights went out. The stereo and GPS remained non-functional for the drive home, but everything else worked fine. This morning I pulled the fuse for the stereo and checked it...it checked out ok. I re-installed the fuse and started the truck and everything, including the stereo and GPS, are functioning normally. Does anybody have any ideas as to what happened? Is it possible that the fuse had worked loose just enough to break the circuit and I inadvertently fixed it by removing and re-installing the fuse? If so, why would that trigger the traction control and security alarm warnings?
 

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Discussion Starter #2
:bump: I am planning to drive to Maryland Sunday...just want to make sure nobody sees a reason I should buy a plane ticket instead...:shrug:
 

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Do you have any idea how the aftermarket head unit is connected into the OEM harness? Some brands of the adapters used have failed, causing weird electrical issues, including problems in some systems that seem to not be related.
 

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Check your connections for the aftermarket unit and the grounds under the hood also the battery cables and battery. It shouldn't be a big deal to road trip it if all checks out good .
 

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I'd say to check the wiring connections as well. For the 30 minutes spent you will at least have piece of mind knowing you looked at it.

What brand of harness is used?
 

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Discussion Starter #7
Thanks guys! I don't have any idea which harness it has since the stereo was installed by the previous owner. I will open up the dash and take a look Friday or Saturday, as well as check my grounding points.
 

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It may be easier to just do the ground points before you start pulling out the wiring. Just remove and reinstall the grounds (ensuring a good connection) and drive happy. If you're only loss was GPS and a radio, if it goes out again it can always wait until you return from your trip.

The traction control I guess could be a concern....best of luck.
 

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Discussion Starter #10
Thanks! I was just getting ready to research the ground points and that saved me a search.
 

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Thanks! I was just getting ready to research the ground points and that saved me a search.

Did that fix the issue? I'm having an electrical gremlin as well, but I get the service, and traction lights and the phantom windshield wiper blades going, and today my engine just cut out in a parking lot.
 

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It goes without saying that the ground points can cause almost any electrical I you can imagine in these trucks. A "floating" ground is the issue they cause and can make really bizarre things happen.
 

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Discussion Starter #13
I used the 1st method listed on the above link and then drove from near Orlando to Columbia, MD (890 miles) on Sunday. So far, no issues. I am hitting the road around 3 am tomorrow headed back South down I-95. Hopefully, still no issues.....
 

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I used the 1st method listed on the above link and then drove from near Orlando to Columbia, MD (890 miles) on Sunday. So far, no issues. I am hitting the road around 3 am tomorrow headed back South down I-95. Hopefully, still no issues.....
Glad to see it fixed the issue :th_woot:
 

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Discussion Starter #15
1,800 miles round-trip, zero problems! :th_woot:
 
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