Multiple Error messages and bricked: Post #39

[TaxmanHog]

Not if they lift the rear wheels to tow, and dollies under the front.

I'm referring to getting the truck onto the flat bed truck not on a hook & drag down the road.

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[Nomoregas]

ok I had just pulled the 12 volt out and left the truck for last week or 2 but today I tried again put fully charged 12 volt in and here is my video of what happens, I am touching nothing after start button.

Frunk was open, door was open

 

[El Duderino]

How much do you know about the battery you used?

Has it been load tested?

Can you measure the voltage off the battery after pushing the start button?

I suspect either your battery voltage is sagging under load or you have a different issue.

But I would confirm you have high enough voltage under load. That many different controllers throwing errors definitely could be low voltage. I would start there.

 

[chriserx]

ok I had just pulled the 12 volt out and left the truck for last week or 2 but today I tried again put fully charged 12 volt in and here is my video of what happens, I am touching nothing after start button.

Frunk was open, door was open

That's crazy, almost certainly a wiring issue. I'd be inclined to say possibly a failed computer module, but the only one that I know of that can tie all of those warnings together is maybe the gateway module. I'm headed to clock in for work so I can't search it for you but maybe look up that wiring harness that's behind the glovebox and check it out. Iirc there was a thread on it sorta recently.

 

[Nomoregas]

battery is Ford OEM brand new and 13 volts, as a note I used a pretty new 12 volt deep cycle battery as a test as well same result.

 

[crazynut52]

I’ve got literally the exact same issue and symptoms going on. Dealer has the truck now but I don’t have high expectations. 2022 Lariat 80k miles. If/ when they fix it, it’s going down the road. It has become way to unreliable

 

[Heliian]

Unless you're a good mechanic with electrical troubleshooting knowledge just take it to the dealer. Most people don't have a clue.

 

[Nomoregas]

ya I have just removed the 12 volt for the last few weeks until I get it to the dealer, been way to cold to empty the truck. May look behind the glove box just to see what I see

 

[Nomoregas]

Well here is my update and it is very bizarre to me!

So after approx 4 weeks truck sitting it was a warm day here and I decided to put the NEW 12 volt back in, ben on a battery maintainer out of the truck all this time.

First I had read about the glove box shorted wires by someone so I popped that out and had a look, I really could not see an obvious short so I put 12 volt in and decided to do the flash hi beams 5 times and push brake 3 times to reset the bms. Well with one or the other the truck was back up and running.

Now if it was the bms... well that is pretty stupid that I would have gone through all that I did all because I did not know at the time to reset the bms after the new battery. Anyways hoping it holds out as I only drove about 15 KM to test and all was great.

I feel I almost would have got hosed by my dealer for 5k had I towed it in, no they wouldn't do that.... would they..

 

[El Duderino]

Happy to hear it's working again!

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