Thank you! I will definitely try both.
I’m hoping that’s the case. About to go try it now.
There are two fuse blocks. One in the engine bay, and the other in the passenger footwell area (basically below the glove box, behind the plastic panel against the floor)
Probably not direct connection to the battery, but anywhere there's a thick, black cable bolted/screwed to the metal frame of the car. There should be one on the passenger side shock tower. I've read about that coming loose for various reasons and causing some wacky problems.
Thank you for the links. It says my Sync is up to date. I bought the car in 2020 and I’ve only had to update it once. I used USB because it was so much faster. I did a master reset though.. would that have deleted the update I did a couple of years ago? My status still says up to date but could it be wrong?https://www.ford.com/support/how-to...-i-install-sync-updates-using-a-usb-or-wi-fi/
https://www.mustang6g.com/forums/threads/official-ford-sync3-3-4-release.145436/page-117
From your comments, it reads like the original issue, not starting, battery dying, has been fixed and the car has been working well for at least the last several days. Good. That gives some confidence the root cause was fixed.
Performing a BMS reset was worthwhile and necessary. Seems the car is responding well to that, even if Sync did not; which leans towards Sync or supporting firmware got corrupted along the way.
Yes, check fuses. Check physical connections. You want to clear the obvious. Once you've done that, check out the threads above.
Ford provides instructions for updating Sync, via USB or wireless. I recommend USB.
After following Ford's instructions for loading on a USB, start the car and get ready to drive. Insert the stick, go driving (you can also sit and idle, but I don't care for that.) It took me about 10 minutes for the update to complete. People with maps will take longer.
Sync will reboot upon completion. During this reboot, if you haven't caught it already, Sync will read the USB yet again and update, again. Nothing bad will happen. You could have your Uncle watch the screen from the passenger side and remove it in time.
Once you've confirmed a correct and good Sync update, you can see where you're at. Good Luck.
Keep us updated when you have a chance.
I will definitely keep y’all updated. I appreciate all the advice I’ve gotten and really appreciate how nice everyone has been here.
That’s crazy you bring that up.. as I said I’m not a car savvy person. I know to put gas in it, air up tires, jump it off and change the oil. Anything else I’m clueless so this may be a dumb question.. About 3 weeks ago the back of my car started squeaking. I take very good care of my car so I don’t drive rough or anything. I figured maybe the shocks or something needed to be lubricated.
So is there a shock tower in the back end of the car and could that be why it’s squeaky and possibly causing my radio and gps to mess up because something has become loose? My battery and alternator never gave me a problem but they both failed about a week after my rear end started to squeak.
Checking all ground is always first step but I doubt that's your issue. Your best bet will be some major troubleshooting. I don't know if there is another way to do a master reset on your unit but I am betting your Sync module is partially toast. I had a similar issue on my S197 Mustang Sync system. It turned out the Sync module had burned on the inside from a short at the USB.That’s crazy you bring that up.. as I said I’m not a car savvy person. I know to put gas in it, air up tires, jump it off and change the oil. Anything else I’m clueless so this may be a dumb question.. About 3 weeks ago the back of my car started squeaking. I take very good care of my car so I don’t drive rough or anything. I figured maybe the shocks or something needed to be lubricated.
Yes everything else works fine. I just can’t use volume/change channel on my steering wheel and I can’t use volume knob or push the audio button on my touchscreen. No sound comes out of the speakers when I’m on Apple CarPlay but the screen shows the song is playing.
Yeah whatever the issue is, I bet its that damn module. I would start there.
