Powertrain Malfunction/ Reduced Power

[Hamtech]

@Hamtech

How is the charge holding up after the latest cell replacement?

Only have had it back for few hours. I am going to drive it a few days and then put it on the charger. I asked when I picked it up if I needed to do anything to balance the battery. I was told no.

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[Hamtech]

Do you also have a "Safety Recall 25S18 for HV battery electrode misalignment" as well showing on FordPass or your Ford online account? (also see poll: https://www.f150lightningforum.com/...tery-electrode-misalignment-discussion.25331/ )
With two modules replaced, you should be good, I hope?!

No, but oddly after the module was replaced the BCEM threw code u019b which led to TSB 25-2065. Hopefully this explains why I have not gotten updates since September ‘24.

 

[GoodSam]

BCEM threw code u019b which led to TSB 25-2065.

I cannot seem to find that TSB, doing a quick search in the forum and at Ford...can you provide any details?

 

[StickyWicket]

Unfortunately my car threw a charge fault yesterday through Ford Pass. When I tried to start it up, it has the red “Stop Safely Now” and won’t get out of accessory mode. Out of town visiting family for Easter so super inconvenient time for it to happen….I will have to find an EV certified dealer and have Ford Roadside assistance tow it there.

 

[Hamtech]

I cannot seem to find that TSB, doing a quick search in the forum and at Ford...can you provide any details?

I have nothing more to go on than one sentence in the service report.

I have had lots of issues recieving updates. I asked the service manager to confirm I was current on all updates. They responded that an issue had been be discovered and repaired.

It is possible the wrong TSB number was entered.

 

[CluckFam7]

Update - needs a new battery module #3. No ETA on the part yet.

Update - fixed after a week. Pretty fast considering.

 

[lightning-spark]

Got the wrench icon and the powertrain malfunction / reduced power on my 2023 Lariat with 8500 miles. Disconnected the 12v for 10 minutes. Power is reduced to 55% but I can AC charge and it's currently at 60%. My guess is that I need a module replacement? The weird thing is that I was trying to talk a friend into purchasing a Lightning a couple of days ago explaining how great it was and now this happens. I should have knocked on wood. Any tips or advice?

P0B24(21) [0x0B2421]
Hybrid battery A - voltage unstable
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested

 

[vvgogh]

Got the wrench icon and the powertrain malfunction / reduced power on my 2023 Lariat with 8500 miles. Disconnected the 12v for 10 minutes. Power is reduced to 55% but I can AC charge and it's currently at 60%. My guess is that I need a module replacement? The weird thing is that I was trying to talk a friend into purchasing a Lightning a couple of days ago and now this happens. Explaining how great it was. I should have knocked on wood. Any tips or advice?

P0B24(21) [0x0B2421]
Hybrid battery A - voltage unstable
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested

Most likely. The dash warning says service vehicle soon - you can keep driving until as convenient as it is to give up your vehicle for weeks to a service department. You can clear the error code and continue on trips with DC fast charging if needed.

If you have a module with voltage out of family and clear the code, the error code will return in a few days unless you replace the errant module. I experienced 4-5 days between clearing the code and it returning. I experienced slower AC charging above ~93% while the vehicle still protected its battery even with the error cleared. While the error code is present, it prevents charging above approximately the level it also limits acceleration power to (high 50s%) - a far more aggressive level of protection.

800-392-3673 - Ask for Battery Electric Vehicle team. If you coordinate through Ford battery electric vehicle team before bringing into a dealer, they'll

1. bug the dealer regularly on your behalf accelerating the repair
2. Get a loaner vehicle for you - hit and miss on the dealer doing this without Ford corporate
3. Reimburse you for fuel if the loaner is gasoline powered - Dealer will not do this

 

[Calvin H-C]

We got this error this past Tuesday morning but it didn't seem to affect how the truck drove. Didn't get to book an appointment that day, but when the truck was plugged in that night to charge, it wouldn't take the charge - the lights on the charge port went red. Tried with both our EVSEs to make sure it was the vehicle, and decided it had to get in for service the next day.

Our dealership couldn't take us, so she went to another dealership we have been using more lately for service. Left it at the end of the day yesterday (Wednesday) so they had it first thing today. The technician called in the morning to confirm what the symptoms were, which was good as the charging issue wasn't entered into their system when the vehicle was dropped off.

He indicated it may take a couple of days to diagnose and fix, but we heard nothing all day. The app continued to show the alert until late this evening. Now it shows no alert, so we'll have to find out in the morning what's up.

It was just in for a service visit two weeks ago before any of this came up.

 

[GDN]

We got this error this past Tuesday morning but it didn't seem to affect how the truck drove. Didn't get to book an appointment that day, but when the truck was plugged in that night to charge, it wouldn't take the charge - the lights on the charge port went red. Tried with both our EVSEs to make sure it was the vehicle, and decided it had to get in for service the next day.

Our dealership couldn't take us, so she went to another dealership we have been using more lately for service. Left it at the end of the day yesterday (Wednesday) so they had it first thing today. The technician called in the morning to confirm what the symptoms were, which was good as the charging issue wasn't entered into their system when the vehicle was dropped off.

He indicated it may take a couple of days to diagnose and fix, but we heard nothing all day. The app continued to show the alert until late this evening. Now it shows no alert, so we'll have to find out in the morning what's up.

It was just in for a service visit two weeks ago before any of this came up.

At the end of the day it's all the same, but if service couldn't get to your truck it would be nice if they told you. These shops have to be rolling major cash as busy as they are.

If you don't know and to be clear it doesn't take a couple of days to diagnose. It should only take about 15 minutes once they hook up FDRS. It may take them a couple of days to get to your truck, but it'd be nice if they just said it like that. It would also be nice if they found better ways to handle flow through their shops. I'm not convinced most of them think too much about that.

 

[lightning-spark]

Most likely. The dash warning says service vehicle soon - you can keep driving until as convenient as it is to give up your vehicle for weeks to a service department. You can clear the error code and continue on trips with DC fast charging if needed.

If you have a module with voltage out of family and clear the code, the error code will return in a few days unless you replace the errant module. I experienced 4-5 days between clearing the code and it returning. I experienced slower AC charging above ~93% while the vehicle still protected its battery even with the error cleared. While the error code is present, it prevents charging above approximately the level it also limits acceleration power to (high 50s%) - a far more aggressive level of protection.

800-392-3673 - Ask for Battery Electric Vehicle team. If you coordinate through Ford battery electric vehicle team before bringing into a dealer, they'll

1. bug the dealer regularly on your behalf accelerating the repair
2. Get a loaner vehicle for you - hit and miss on the dealer doing this without Ford corporate
3. Reimburse you for fuel if the loaner is gasoline powered - Dealer will not do this

Thanks for your very helpful reply. I called Ford Canada and asked for the BEV team after explaining the problem. After a brief hold I was told that there was nothing they could do for me and everything has to be done through my dealer.

 

[Calvin H-C]

At the end of the day it's all the same, but if service couldn't get to your truck it would be nice if they told you.

Agreed.

FordPass shows that the vehicle hasn't been moved since mid-Thursday morning. I called this morning (Friday) to find out about getting a loaner vehicle only to be put through to voice mail that was not answered before I called back at 1 pm only to be told there was no one able to help until after 2. When I called at 2, they said they could not arrange anything today but could on Saturday morning so I would have to call again. They did say that the service technician it was assigned to was off today. It would have been nice if this was mentioned yesterday so we could arrange for the loaner.

Shout out to @vvgogh for the post above about calling customer service. The number above (800-392-3673) is for Ford in the USA, but they were helpful and opened a ticket before "warm transferring" me to their Canadian counterpart so I wouldn't have to repeat all my details all over again. The Canadian office (800-565-3673) also opened their own ticket on the matter. If I continue to have any issues, I can call them back and have them contact the dealership on my behalf.

We'll see how this plays out...

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