The fix is in! (Maverick battery drain)

[Darryl]

So………….
Some will say “What the heck, might as well get it done. Can’t hurt!”
Are they right?
Can it hurt?

I suspect it will fix it because I’ve recently updated several modules (including the ACCM) for other reasons . And the customer no longer complained about battery drain. Often they indeed ”see what sticks “ based on feedback from us when we seek their assistance with stubborn problems. This is an intermittent problem that’s difficult to catch the drain in action because we’ll leave our test equipment on ALL DAY with no drain. Do it again the next day. Then the battery will randomly drain overnight when we’re not there. It’s likely some techs caught it in action and found the ACCM awake and causing drain. So ford concentrated the fix on that moduule. But they can’t be. 100% sure until we attempt the fix on hundreds of customer driven vehicles.

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[riparian]

Well, last week in anticipation of taking my truck in for the rear camera recall I replaced fuse 11/12.
Sunday when I opened the driver's door NO INTERIOR LIGHT.
I had drove the truck 60 miles Saturday
Last September, I removed fuse 11 charged my battery, did the reset and hadn't an incidents of No Interior Lights.
Video taken this morning. No lights.

I didn't have any problems until I replaced fuse 11/12 last week.
Just a coincidence I doubt it, I've gone 8 months without any problems until I replaced fuse 11/12.

Glen, may I ask how frequently you drive your Maverick?

So far I haven't pulled fuse 11/12, but I may try that if the ACCM software update doesn't pan out. Forgive me if I'm skeptical.

I really like my Maverick, but I don't think reliable courtesy lights is an unreasonable expectation.

 

[Glen Baker LLC]

Glen, may I ask how frequently you drive your Maverick?

So far I haven't pulled fuse 11/12, but I may try that if the ACCM software update doesn't pan out. Forgive me if I'm skeptical.

I really like my Maverick, but I don't think reliable courtesy lights is an unreasonable expectation.

Almost everyday.
This morning I got in it to take a picture of my owners manual. Opened the door and the lights never came on. It clicked about 5 or 6 times while I was in it taking the picture.
To me it's more than a coincidence 8 months ago I pulled fuse 11/12, charged the battery did the BSR reset and had no problems for 8 months. Last week I reinstalled the fuse and now I sometimes don't have courtesy lights.

 

[Larrythelunatic]

The SSM includes 2022, 2023, 2024 and 2025 model years. They have identified a manufacturing defect (design defect). These have nothing to do with warranty. Should be covered in it's entirety, similar to recalls.

From your lips………..

 

[riparian]

Almost everyday.
This morning I got in it to take a picture of my owners manual. Opened the door and the lights never came on. It clicked about 5 or 6 times while I was in it taking the picture.
To me it's more than a coincidence 8 months ago I pulled fuse 11/12, charge the battery reset the BMS and had no problems great months. Last week I reinstalled the fuse and now I don't have courtesy lights some of the time.

Thanks. My Maverick is a secondary vehicle and only gets driven once or twice a week. My courtesy lights only work for a day or so after an extended drive. Disabling all communications (leaving fuse 11/12 in place) doesn't seem to make much difference.

 

[ZABSMAV]

Thanks. My Maverick is a secondary vehicle and only gets driven once or twice a week. My courtesy lights only work for a day or so after an extended drive. Disabling all communications (leaving fuse 11/12 in place) doesn't seem to make much difference.

Nor would it make a difference. The communications to and from the vehicle is essentially identical to what a smart phone sends, since it also uses the AT&T 4G LTE network. A small smartphone, sans a display, would not take very much power at all from a 12v vehicle battery. The problem isn't likely parasitic drawing down of the battery, but the poorly designed, inadequate, recharging circuit that is not capable of recharging the 12v battery, thus leaving it always precipitously undercharged and on the threshold of being incapable of having enough power to run the electronics and allow the vehicle to start. Deep sleep is a last ditch effort to retain enough capacity to hopefully allow the vehicle to start. We all would expect and have a right to expect that after driving our vehicle for a period of time that the battery would fully recharge and have its full capacity available.

 

[riparian]

.... We all would expect and have a right to expect that after driving our vehicle for a period of time that the battery would fully recharge and have its full capacity available.

Especially since the 12v battery in a hybrid doesn't ever have to support the most demandig function in a conventional vehicle—cranking a cold engine.

 

[Kalexko]

Bout time,!!¡!! Yay!

Yes ... I will get my Maverick back ... so excited!

 

[Darryl]

From your lips………..

The SSM tells us which part to code the update to. The part number determines if it's covered or not. In this case, the part number is 19703. That particular part is covered by 3/36 bumper to bumper. So at THIS time, it's not covered beyond that. Based on ford's usual practice, I suspect EVENTUALLY they may extend the coverage . But as of now, it only 3/36. That's why I suggested that the customer have documentation of a prior repair attempt. OR that they contact Ford for after warranty assistance. I know what Ford SHOULD do. But as of now , they aren't doing it yet. But customer demand often causes them to do the right thing with Problems such as this.

 

[Waterick]

Well, last week in anticipation of taking my truck in for the rear camera recall I replaced fuse 11/12.
Sunday when I opened the driver's door NO INTERIOR LIGHT.
I had drove the truck 60 miles Saturday
Last September, I removed fuse 11 charged my battery, did the reset and hadn't an incidents of No Interior Lights.
Video taken this morning. No lights.

I didn't have any problems until I replaced fuse 11/12 last week.
Just a coincidence I doubt it, I've gone 8 months without any problems until I replaced fuse 11/12.

My experience indicates that it was going to happen anyway. I pulled my fuse 11 preventatively around the end of February '24 (I also don't like all the invasion of privacy). I never experienced any symptoms until around the end of October. Since then, my battery goes on the noco5 when the lights don't come on. Maybe 4-5 times since.
I'm sure the telematics do accerbate the battery failure, but once the battery gets bad nothing but a new battery will really delay the need (to charge it). Hope this Ford "fix" really is a cure. I'm going to finally schedule all my recalls, I think.

 

[MakinDoForNow]

The SSM includes 2022, 2023, 2024 and 2025 model years. They have identified a manufacturing defect (design defect). These have nothing to do with warranty. Should be covered in it's entirety, similar to recalls.

Perhaps they don't but they have to have a cut off date on the SSM. Would we feel better if the SSM was open ended "2022-202?"????

 

[Deb from MN]

Perhaps they don't but they have to have a cut off date on the SSM. Would we feel better if the SSM was open ended "2022-202?"????

Yes, as long as the problem exists, it should be fixed for free.

 

[Darryl]

Thus far its covered by 3/36.

Perhaps they don't but they have to have a cut off date on the SSM. Would we feel better if the SSM was open ended "2022-202?"????

Thus far it's only covered by 3/36. Perhaps they will extend the coverage later. If they do, they will usually reimburse those who paid out of pocket. I suggest getting it done if you can afford it if your vehicle is showing symptoms. I cant imagine them charging more than One hour's labor. There are no parts involved

 

[johnDeere]

Nor would it make a difference. The communications to and from the vehicle is essentially identical to what a smart phone sends, since it also uses the AT&T 4G LTE network. A small smartphone, sans a display, would not take very much power at all from a 12v vehicle battery. The problem isn't likely parasitic drawing down of the battery, but the poorly designed, inadequate, recharging circuit that is not capable of recharging the 12v battery, thus leaving it always precipitously undercharged and on the threshold of being incapable of having enough power to run the electronics and allow the vehicle to start. Deep sleep is a last ditch effort to retain enough capacity to hopefully allow the vehicle to start. We all would expect and have a right to expect that after driving our vehicle for a period of time that the battery would fully recharge and have its full capacity available.

I wish it was as simple as this.
From what I am seeing on my 23 mav. hybrid XLT. I think the main issue so far is the battery is just too small, (low battery reserve).
I have a volt and amp meter connected to the battery, and have the voltage and amperage on the screen, (car scanner).
So I can see whats going on when in "ready" mode and when the key is off.
Right now, (spring), the battery is charging at 14.6v, in the winter time it was charging at 15v.
The battery has all the current it could take, (i have seen 40 amps going to the battery).
When I get to work, (a 15 minute drive) the current going to the battery is about 3-4 amps at 14.6 volts, so it may not be fully charged.
There is a battery draw right when you turn off the key,
This may be just the lights or other things, but when the lights are OFF the current draw is still present for a while.
It evenly drops, but there is still a current draw.
As for the unknown draw I think its present, but I have not noticed it when walking by the truck and looking in the window. You can hear relays clicking now and then, but thinking it phoning home to ford.

 

[MakinDoForNow]

I wish it was as simple as this.
From what I am seeing on my 23 mav. hybrid XLT. I think the main issue so far is the battery is just too small, (low battery reserve).
I have a volt and amp meter connected to the battery, and have the voltage and amperage on the screen, (car scanner).
So I can see whats going on when in "ready" mode and when the key is off.
Right now, (spring), the battery is charging at 14.6v, in the winter time it was charging at 15v.
The battery has all the current it could take, (i have seen 40 amps going to the battery).
When I get to work, (a 15 minute drive) the current going to the battery is about 3-4 amps at 14.6 volts, so it may not be fully charged.
There is a battery draw right when you turn off the key,
This may be just the lights or other things, but when the lights are OFF the current draw is still present for a while.
It evenly drops, but there is still a current draw.
As for the unknown draw I think its present, but I have not noticed it when walking by the truck and looking in the window. You can hear relays clicking now and then, but thinking it phoning home to ford.

I don't have anyway to check but expect the HVB coolant pump will run until the fluid entrance and exit temps are close enough together that there is no chance there is a "hot" spot anywhere internal.

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