Ford Power-up 4.2.6

[HuntingPudel]

It IS on the charger when it tries to update at 3AM. . . . plugged in usually at 9pm.

If you garage your car, hook the 12V battery up to a 12V charger to ensure that the 12V is getting charged. ??

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[Mach-Lee]

It IS on the charger when it tries to update at 3AM. . . . plugged in usually at 9pm.

To clarify, the car must be actively charging for 2-3 hours, not just plugged in (nothing happens when charging is finished). So it charges from like 40% to 80% in one session.

An easy way to be to drive it for 1.5 hours, immediately plug in and charge it for 1.5 hours, then unplug and start the update. Or disable auto shutdown and leave it on in the garage for 3 hours. Or connect a 12V battery charger overnight (important to use a body ground).

 

[Shayne]

Yours is failing because your 12V battery is only about 20% SoC (which is another problem you should fix). Looks like you don't drive much? You need to leave the car on or charge it for about 3 hours immediately before starting the update.

And why is the 12V sitting at 20%? Is that something the car should handle or something the owner has to maintain? You would think plugged in with a 100 KWh battery in the vehicle that the car should be able to deal with the small 12V? Is the car smart enough to come on and charge the 12V or are owners required to leave it on for 3 hours or drive around for 1.5 hours doing nothing but maintaining a 12V. Maybe the fix for that is in this update?

Out to start and stop mine 10 times right now

 

[SWO]

Drove last night. In EA. Didn't get this yet.

Ditto. EA. Not queued.

 

[Deleted member 16048]

Ditto. EA. Not queued.

Same, though I’m new to EA. (Finally got in thanks to some connections.)

 

[Kamuelaflyer]

Installed today. It’s likely been queued up for awhile. It I haven’t had the car out. EA.

The charge to 100% glitch is still in existence as well. The car charged to 100% after the update.

 

[tuminatr]

Failed twice today out and about. When I got home plugged in to charge and it successfully installed.

 

[mkhuffman]

Yours is failing because your 12V battery is only about 20% SoC (which is another problem you should fix). Looks like you don't drive much? You need to leave the car on or charge it for about 3 hours immediately before starting the update.

Lee, I don't understand how the LVB can get down to 20%. The car is supposed to charge it when it reaches 40%, right? More than a year ago I tested that on my car and it did maintain the battery even when disconnected from a EVSE. Did that get screwed up with a subsequent software module update?

 

[jgcom]

Yes, we know the Ford release notes department loves to copy/paste text from past updates, even if it has nothing to do with the present update. They should have left the recall stuff out because that was fixed 2-3 powertrain OTAs ago, and the functionality hasn't changed this update.

Now there is this image in my mind of an actual "release notes department." Thinking a bit about where such a department would best report, I remembered a snapshot I took at WDW some years ago, attached.

 

[Richard L.]

Now there is this image in my mind of an actual "release notes department." Thinking a bit about where such a department would best report, I remembered a snapshot I took at WDW some years ago, attached.

This was directed to mkhuffman.
The designed charging strategy is when LVB reaches 40% SOC it waits 48 hours (if parked and off) and directs HVB to initiate energy transfer. If it does reach 30% SOC, energy transfer is immediate. Should never reach 20% SOC. I would agree with you that something has changed or you have parasitic drain.

 

[mkhuffman]

This was directed to mkhuffman.
The designed charging strategy is when LVB reaches 40% SOC it waits 48 hours (if parked and off) and directs HVB to initiate energy transfer. If it does reach 30% SOC, energy transfer is immediate. Should never reach 20% SOC. I would agree with you that something has changed or you have parasitic drain.

Have you tested that to confirm? When I tested it a year ago it started recharging the battery as soon as it hit 40%. The car was off and it was not connected to a EVSE.

Maybe something has changed, but data to show the process you described would be useful.

I will add that when I first got my car in late 2021, it did not work that way. I have to go back and look at the data but it went well below 40% and I got LVB warning messages. After a software update I tested it again and it then it worked as I described above. I have not tested it again since then.

 

[Richard L.]

Have you tested that to confirm? When I tested it a year ago it started recharging the battery as soon as it hit 40%. The car was off and it was not connected to a EVSE.

Maybe something has changed, but data to show the process you described would be useful.

I will add that when I first got my car in late 2021, it did not work that way. I have to go back and look at the data but it went well below 40% and I got LVB warning messages. After a software update I tested it again and it then it worked as I described above. I have not tested it again since then.

I have not verified this. Charging strategy was taken from a Ford Special Vehicle Engineering bulletin.

 

[ZombieJester]

i have failed at least 6 times trying to install this. Never had a problem with an OTA before. Recently had EAP activated for the car. Just let the car run for two hours and tried again. Still failed. I only have a normal wall outlet charger at home so I guess I can try that. Any other tips appreciated.

 

[Mach-Lee]

Lee, I don't understand how the LVB can get down to 20%. The car is supposed to charge it when it reaches 40%, right? More than a year ago I tested that on my car and it did maintain the battery even when disconnected from a EVSE. Did that get screwed up with a subsequent software module update?

I don't either, yes it's supposed to immediately recharge at 40%. His was much lower than I typically see. It doesn't look like it's driven much, so potentially it went into deep sleep mode or something. Or has a battery charger or accessory hooked up wrong. The outdated BCM software from late 2021 could also be a factor (latest BCM software from mid 2022 seems to maintain the 12V much better).

i have failed at least 6 times trying to install this. Never had a problem with an OTA before. Recently had EAP activated for the car. Just let the car run for two hours and tried again. Still failed. I only have a normal wall outlet charger at home so I guess I can try that. Any other tips appreciated.

Two hours might not be enough, I've seen it take 3 hours in a few cases. Or maybe you forgot to disable auto shutdown so it only ran 30 minutes. Leave it on, drive it, or actively charge it for 3+ hours and try again.

 

[dbsb3233]

Lee, I don't understand how the LVB can get down to 20%. The car is supposed to charge it when it reaches 40%, right? More than a year ago I tested that on my car and it did maintain the battery even when disconnected from a EVSE. Did that get screwed up with a subsequent software module update?

I never understood why the car doesn't just monitor the LVB 24x7 and kick on a trickle charge at 80%. Seems simple.

Too simple, apparently. ?‍

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