Completely DEAD!!

[generaltso]

So if it is charged when plugged in, it should be charged fully especially after sitting for 36 hours plugged in. Has to be more to it.

There is more to it. Something is not working as it should.

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[woody]

Looks like he changed it. No biggie. Just wanted to make sure he knew he had a 2021.

I just thought Ford came up with another way (probably accidentally, lots of "accidental" stuff on the long list) of driving us nuts.

 

[Mv10858]

Looks like he changed it. No biggie. Just wanted to make sure he knew he had a 2021.

I know what I have it was a typo.

 

[MoonRiver]

So if it is charged when plugged in, it should be charged fully especially after sitting for 36 hours plugged in. Has to be more to it.

Yes, plug in LVB gets charged by design but some didn't work that way. Ford had a fix for them, but I can't recall the service bulletin for the fix though.

 

[generaltso]

Yes, plug in LVB gets charged by design but some didn't work that way. Ford had a fix for them, but I can't recall the service bulletin for the fix though.

That fix came out in March of 2021. I sure hope there aren't still cars out there that haven't gotten this fix.

https://www.macheforum.com/site/thr...uring-the-high-voltage-charging-process.4922/

 

[Polar]

Yes, plug in LVB gets charged by design but some didn't work that way. Ford had a fix for them, but I can't recall the service bulletin for the fix though.

TSB 21-2091

I posted it on page one… and as OP has 17k miles and doesn’t visit the dealer, he very well may not have had applied

 

[Mv10858]

TSB 21-2091

I posted it on page one… and as OP has 17k miles and doesn’t visit the dealer, he very well may not have had applied

The car was built in September of 2021 I would assume it would have been already done.

 

[Jimbo]

The LVB gets charged as the charger plugged in, this is the only way it keeps charged. but I have read some of the 21 models don't get charged.
You don't need the lighter socket permanently connected to the LVB, you only need a few seconds to measure the voltage before the accessory power shuts off including the radio.

True, I'm just saying

Use a multimeter to measure the cigarette lighter socket voltage if it’s 12 volts. If not then it’s LVB. Are you sure it was charging the whole time?

will likely fail as an LVB diagnostic for an entirely-dead car, as the socket is normally off when the car is off. I.e. in this scenario, a 0v/floating reading indicates the outlet is unpowered, not that the LVB is dead.

 

[All Hat No Cattle]

Does the MME not come with complimentary Roadside Assistance?

Or is the MME a do-it-yourself warranty vehicle?

https://www.ford.com/support/category/service-maintenance/roadside-assistance/

TIRE AND BATTERY ASSISTANCE
SERVICE DELIVERED
If you find your vehicle has a flat tire or dead battery, help is just a call away. Ford Roadside Assistance will help mount your spare tire or give your vehicle a jumpstart. If needed, we’ll also tow it to the nearest Ford Dealership.

 

[alexgorod]

will help mount your spare tire

If it's on the Internet, it must be true.

 

[RickMachE]

Does the MME not come with complementary Roadside Assistance?

Or is the MME a do-it-yourself warranty vehicle?

https://www.ford.com/support/category/service-maintenance/roadside-assistance/

It does not come with complementary Roadside Assistance. Ford never has had this. It does come with Complimentary Roadside Assistance. I've owned Fords for many years, and used the Roadside Assistance, and not once did the driver pay me a compliment though.

 

[Mach-Lee]

So if it is charged when plugged in, it should be charged fully especially after sitting for 36 hours plugged in. Has to be more to it.

The 12V battery is only maintained while the high voltage battery is actively charging. Once charging is finished, the car goes to sleep and the 12V battery may drain dead even though it is still plugged in. I’ll have to look later what’s going on, but could be a charge fault or just a bad 12V battery.

 

[Richard L.]

I have posted this before in other threads. Below is the charging strategy for the Mach E. The 12V battery will always charge when needed. If repeated charging is required as a result of some external drain, battery damage will occur.

Taken from Ford Special Vehicle Engineering:
While ignition is off, if 12V battery reaches 40% state of charge, then vehicle waits 48 hours , before the DC-DC transfers 300 Watt-hours of energy to recharge the 12V battery. The HV power comes from either HV battery or wall power while on plug. If the 12V battery state of charge reaches 30%, then this HV to LV energy transfer happens immediately with no delay.
Note:
• This system was designed to recharge 12V battery while the vehicle was left parked for many days
either on or off plug or occasional drain from customer usage. The 12V battery will wear out if this energy transfer is completed daily due to aftermarket loads draining the 12V battery down to 40% or lower.
• Vehicle has 35 Amp-hour AGM 12V Battery

 

[sgriffin130]

Is there a physical key in the fob to open the door ?

I ask because I am new to the MME...

NO

 

[AKgrampy]

It does not come with complementary Roadside Assistance. Ford never has had this. It does come with Complimentary Roadside Assistance. I've owned Fords for many years, and used the Roadside Assistance, and not once did the driver pay me a compliment though.

Sometimes I wonder how many forum members compliment you on your replies?

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