Thunderstorm Causing Dash Alerts?

[Ducati1098]

Everyone here is a good source of laughs, as usual, but the situation leaves me wondering what could be the cause such a cascade of warnings to go away as mysteriously as they arrived. Likely no on the wheel sensors, seemed fine. Battery fine. Gremlins in the various sensor systems not so rare I guess. I’ll have Ford pull some codes when I go in for the harness recall (hopefully in Sept).

Likely just a temporary loss of communication. It happens sometimes in modern networks.

If you want, I can check your VHR for codes.

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[CalvinT]

I thought there was a recall to correct that?

Doesn't apply for off-road use.

 

[Pops]

Wait until there’s an EMP attack…the Bronco will be the least of your worries.

sigh. I too sometimes think about this.

Then, how much effort/cost for adequately shielding and grounding my garage? . Eh, I’d just be one of the few with a driving vehicle, making me a big target.

onward!

 

[HalfmuleFarmer]

sigh. I too sometimes think about this.Then, how much effort/cost for adequately shielding and grounding my garage? . Eh, I’d just be one of the few with a driving vehicle, making me a big target.

NavBase KitSap would be a prime nuke target, so don’t worry about it!

 

[CarGuy]

sigh. I too sometimes think about this.

Then, how much effort/cost for adequately shielding and grounding my garage? . Eh, I’d just be one of the few with a driving vehicle, making me a big target.

onward!

Firearms and ammo are not impacted by and EMP

 

[BadlandsA51]

I saw several lightning struck vehicles in my time at Ford. Sometimes it was obvious, the radio antenna would be melted. Other times it took a long search to find a tiny burn spot in the paint. I saw a low mileage Expedition that was totaled by the insurance company. We found no evidence of a direct strike on it, but, according to the customer, a tree it was sitting next to was struck. None of the modules survived as far as we could tell,

 

[CalvinT]

I saw several lightning struck vehicles in my time at Ford. Sometimes it was obvious, the radio antenna would be melted. Other times it took a long search to find a tiny burn spot in the paint. I saw a low mileage Expedition that was totaled by the insurance company. We found no evidence of a direct strike on it, but, according to the customer, a tree it was sitting next to was struck. None of the modules survived as far as we could tell,

Lightning strikes have an amazing amount of energy. The average current is around 30,000 amps. The first return stroke has a rise time of 1 - 10 microseconds. Subsequent strokes are faster. This will cause huge current flows in surrounding conductors. Large strikes can go over 100,000 to 300,000 amps. Also a lightning strike causes huge amounts of current to flow in the surrounding ground which create high voltage gradients. High enough it's possible for there to be an arc from the ground to the vehicle. The gradient can be as much as 20,000 - 30,000 volts per meter. So different parts of the Expedition would have different voltage readings from the chassis to the ground. So you had a combination of EMP and good old short circuits. You'll also have massive amounts of current flowing in the car chassis from a close strike.

Automotive circuits have some protection, but not from lightning.

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