Updates on the HVBJB (22S41)

[AKgrampy]

I just wish that everyone that had their HVBJB fail would send a report to the NHTSA. Maybe then, they would mandate a real recall to replace all the parts.

Especially anyone who got the SSN error and had to pull over right away versus the SVS software throttle.

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[dtbaker61]

My HVBJB just failed after 3,400 miles. No DCFC but no special treatment concerning WOT. Is that what done it in? Will my replacement HVBJB last the same mileage?

as discussed ad nauseum, there are many contributors to failure of the 1st gen HVBJB.... total mileage is not a main factor.

If your HVBJB failed, and is verified to have thrown the DTC indicating replacement, you will qualify for replacement with the new, improved HVBJB hardware.

The *current* version of the hardware is supposed to last for the life of the battery pack.....

 

[ryano7700]

as discussed ad nauseum, there are many contributors to failure of the 1st gen HVBJB.... total mileage is not a main factor.

If your HVBJB failed, and is verified to have thrown the DTC indicating replacement, you will qualify for replacement with the new, improved HVBJB hardware.

The *current* version of the hardware is supposed to last for the life of the battery pack.....

My MME was built July 2022. Shouldn’t I have had the new hardware?

 

[Fixbear]

Just a matter of when it’s ‘your time’ to get the replacement?

The update was more than just warnings. They added time to the resistor bleed circuit to prevent large inrush to the contactors. That cuts down the current flow thru the contacts. The big power flow was charging the capacitors in the motors. Charging them thru a resistor helps to protect the contactors. So basically, it is a permeant solution unless your car had some damage before the update.

 

[Vulnox]

My MME was built July 2022. Shouldn’t I have had the new hardware?

Most likely, but it's tough to know the exact cut over the part would have been installed. The vehicles can be on the light for a few days or a few weeks depending on plant shutdown times, part transitions, etc.

Also, anyone with a June 2022 or later that has a failed HVBJB or some of the associated messages assume it's the same failure, but like any part in any car made by any company, there can be other points of failure even when everything else is fine. Not every HVBJB failure is due to the welded contactor issue, regardless of when it was built. Some on here seem to think any HVBJB failure or any warning about the battery is the same contactor issue. Unfortunately the only ones that know for sure is whoever gets to tear apart a failed HVBJB.

 

[kennethjk]

The update was more than just warnings. They added time to the resistor bleed circuit to prevent large inrush to the contactors. That cuts down the current flow thru the contacts. The big power flow was charging the capacitors in the motors. Charging them thru a resistor helps to protect the contactors. So basically, it is a permeant solution unless your car had some damage before the update.

This is very interesting but it could apply to every MME built before new HVBJB was installed and if that is the case why are we seeing some of the new ones having problems, just unluck of the draw?

info was appreciated

 

[Fixbear]

This is very interesting but it could apply to every MME built before new HVBJB was installed and if that is the case why are we seeing some of the new ones having problems, just unluck of the draw?

info was appreciated

I'm just guessing here on that, but it seems that there are 2 or 3 that had the HVBJB replaced more than once. I'd be looking at the Capacitors in the drive motors to be in spec. Capacitors do fail. And not always completely. The problem is they are large and not easy to test with normal capacitor equipment.

 

[DevSecOps]

How many people has this stranded? The vehicle still functions.

Prior to the software update this was a dangerous safety issue. It isn't anymore.

Look in my signature at the data aggregation. In 3 months of data gathering (from just the forum) there were 22 failures, complete failures, some with the recall in place. As a matter of FACT, it happened to me, 120 miles from home. I had the recall and got SSN. Ford Roadside refused to tow my vehicle because I was more than 100 miles from home and I had to have family drive down to get me.

The recall is a crock of shit to make people like you think it's doing something. Ford knew all along that they needed to replace the HVBJB. You think they just re-designed it for kicks and giggles?

 

[BigMach-E]

You are very uneducated when it comes to the HVBJB and should probably just bow out at this point.

Look in my signature at the data aggregation. In 3 months of data gathering (from just the forum) there were 22 failures, complete failures, some with the recall in place. As a matter of FACT, it happened to me, 120 miles from home. I had the recall and got SSN. Ford refused to tow my vehicle because I was more than 100 miles from home and I had to have family drive down to get me.

The recall is a crock of shit to make people like you think it's doing something.

I hear you, the software notice is just a notice, it fixes nothing, it doesn’t do for quite a few cases what it was designed to do.

Now, it could and can give you advanced warning that will give you the opportunity to get the car to the dealership, or, it could still get you stranded. As someone who have experienced both of these things (HVJB failure pre software, leading to a bricked car, and HVJB failure with software applied, allowing meto drive the car onto the service lot) I’ll take not having to have the car towed. I know it doesn’t work like thisfor everyone.

I am curious, though, after the software was applied, have people had straight up SSN without SVS first? Also, what’s the longest mileage that one has gone with HVJB failure SVS to either an SSN or getting replacement?

None of this stuff excuses that Ford let this car out there in the world with a part that specs in no way matched the current the battery pushes during normal operation.

Nor does it excuse that Ford isn’t performing a voluntary recall of the HVJB that they know is likely to fail in most year 21 and half of 22 MME in some sort of an orderly fashion.

Nor does it excuse the fact that Ford could have spent maybe 40 dollars more per vehicle to give us bus bars that had twice the diameter, which could have allowed us full power from the pack to the motors for maybe 8-9 seconds, then no one would be complaining about the fact this car is a dog above 70-80 MPH.

So, the beefier HVJB might have also cost another extra 40 dollars than the original part. All in, would have cost Ford 80-100 bucks more per car, wewould have gladly paid it. It’s shameful what the bean counters did to this car.

 

[mkhuffman]

I hear you, the software notice is just a notice, it fixes nothing, it doesn’t do for quite a few cases what it was designed to do.

Now, it could and can give you advanced warning that will give you the opportunity to get the car to the dealership, or, it could still get you stranded. As someone who have experienced both of these things (HVJB failure pre software, leading to a bricked car, and HVJB failure with software applied, allowing meto drive the car onto the service lot) I’ll take not having to have the car towed. I know it doesn’t work like thisfor everyone.

I am curious, though, after the software was applied, have people had straight up SSN without SVS first?

Did you read Todd's post? He got SSN even after the recall software update.

 

[silverelan]

My understanding is that for GTs at least, Ford is on their third iteration of the part. Does anyone (@Mach-Lee @benk016 ) know what the specs differences are from the original to the first revision to the latest version?

 

[BigMach-E]

Did you read Todd's post? He got SSN even after the recall software update.

Yes, he also got SVS before the SSN, and went 100+ miles after the SVS before getting the SSN, IIRC.

 

[woody]

Remember, Ford has no customers who are consumers. You cannot purchase a Ford from Ford.
Ford has no interest in Ford owners. This is why there is no customer service at Ford - evidenced by this forum alone, if nowhere else!
The same is true for the political NHTSA (GM's decades long pick-up exploding/fireball gas. tanks are a good example).

This is a good and often helpful forum. But it is no panacea or is it invincible. In this day and age, an expensive product with as many flaws as the MME would motivate someone else to start a similar forum.
Imagine an SVS or an SSN appearing on your screen w/o any previous knowledge.

$2B+/year in advertising spending is a lot of power.
Yes, of course Ford is unequivocally wrong. And Ford's actions, or lack of the same, is unconscionable. No excuses are valid. If Ford stood alone here, it would be notable on a grander scale. That does not make it right. However, that being said, most other manufacturers correct their mistakes willingly when exposed.
We all had our various reasons for purchasing our MMEs. We are pretty much stuck with them and Ford knows it.
"Sell it" is at its best very bad advice. Legally you would have to sell it "as is" and of course that is a red flag. If you chose to sell it w/o disclosing the known HVBJB defect (or any other hidden defect), the buyer is entitled to financial compensation for repair costs from the seller.

 

[mkhuffman]

"Sell it" is at its best very bad advice. Legally you would have to sell it "as is" and of course that is a red flag. If you chose to sell it w/o disclosing the known HVBJB defect (or any other hidden defect), the buyer is entitled to financial compensation for repair costs from the seller.

I have sold a lot of cars as a private seller, and all were long past the warranty period. Private sellers don't offer any sort of warranty anyway, well at least I never have and never would.

However, that isn't applicable to my MME, because it is fully covered by the manufacturer warranty, which transfers with the car when I sell it. Also, the HVBJB has not failed in my car yet, and it might never fail. There is nothing to disclose if I decide to sell my car.

 

[Shayne]

Remember, Ford has no customers who are consumers. You cannot purchase a Ford from Ford.
Ford has no interest in Ford owners. This is why there is no customer service at Ford - evidenced by this forum alone, if nowhere else!
The same is true for the political NHTSA (GM's decades long pick-up exploding/fireball gas. tanks are a good example).

This is a good and often helpful forum. But it is no panacea or is it invincible. In this day and age, an expensive product with as many flaws as the MME would motivate someone else to start a similar forum.
Imagine an SVS or an SSN appearing on your screen w/o any previous knowledge.

$2B+/year in advertising spending is a lot of power.
Yes, of course Ford is unequivocally wrong. And Ford's actions, or lack of the same, is unconscionable. No excuses are valid. If Ford stood alone here, it would be notable on a grander scale. That does not make it right. However, that being said, most other manufacturers correct their mistakes willingly when exposed.
We all had our various reasons for purchasing our MMEs. We are pretty much stuck with them and Ford knows it.
"Sell it" is at its best very bad advice. Legally you would have to sell it "as is" and of course that is a red flag. If you chose to sell it w/o disclosing the known HVBJB defect (or any other hidden defect), the buyer is entitled to financial compensation for repair costs from the seller.

I agree Ford PR is really good at suppressing the actual truth. EV bloggers do not want to step on EV's toes? So they say nothing about this EV or good news stories that do not reflect the real truth.

The HVJB and their fix for undersigned hardware with software is of course ridiculous.

The safety issues I have read here due to the HVJB and the lack of care for peoples safety that Ford continues to show is a black mark for me. Many will be looking for a company that has professional engineers that put peoples safety over their bottom line in accordance with their obligation. The engineers that came up with the software HVJB fix should be reported to their associations. Their obligation is to peoples safety first and then their employer/client. Wonder how many engineers with ethics have just quit and walked away. Know you can not have too many real good engineers working for a company that has the policy of putting their bottom line first. That is a snowball going down hill. Don't want to hear the excuse about part shortages anymore as they have built new ones that far exceed the number of the ones they continue to allow on the road that are under designed and unsafe. Don't want to hear that the software helps not create a dangerous condition "most" of the time. Any engineer that supports that I would fire on the spot.

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