[DATA] - HVBJB Mega Data Aggregation Thread

[dtbaker61]

I'm just doing road trips in my '21 GT waiting for the HVBJB to fail. I hate the background anxiety but Ford says they won't replace the junction box until it fails completely.

I made sure the software 'recall' update was in my '21.... and just drove normally. I got the SVS thrown about 2 weeks later. The software will catch the HVBJB as it is on the way out, limit your output to prevent bricking, and put up the ServiceVehicleSoon message rather than stranding you.

Once the SVS has been thrown, you can continue driving while your Dealership orders replacement (via their COPIS process) and you should have the part in a week, replaced in a day, and back on the road.

Sponsored

 

[DevSecOps]

I made sure the software 'recall' update was in my '21.... and just drove normally. I got the SVS thrown about 2 weeks later. The software will catch the HVBJB as it is on the way out, limit your output to prevent bricking, and put up the ServiceVehicleSoon message rather than stranding you.

Once the SVS has been thrown, you can continue driving while your Dealership orders replacement (via their COPIS process) and you should have the part in a week, replaced in a day, and back on the road.

None of that is guaranteed. The data, and personal experience, shows that it will sometimes catch it and you can sometimes drive it for longer. Especially on a long trip, I would be worried if I still had the old HVBJB.

 

[dtbaker61]

None of that is guaranteed. The data, and personal experience, shows that it will sometimes catch it and you can sometimes drive it for longer. Especially on a long trip, I would be worried if I still had the old HVBJB.

Your chances of catching a failing unit with the software are better than without the software, but of course no guarantees.


I can certainly relate to being uncomfortable driving around a questionable job one unit. Put my mind at ease after it failed and was replaced. I still think there should be a way to force a replacement from Ford before codes get thrown

 

[silverelan]

I’ll drive where I want to but like I said, it bugs me having the background anxiety. I’m currently 500 miles from home and am about to head up into a remote mountainous area of Oregon that’s 80 miles from the nearest dealer.

@DevSecOps data of failed units is fascinating. Just hope I can keep delaying the inevitable to a place where the HVBJB failure is in a “convenient” location.

 

[mkhuffman]

I’ll drive where I want to but like I said, it bugs me having the background anxiety. I’m currently 500 miles from home and am about to head up into a remote mountainous area of Oregon that’s 80 miles from the nearest dealer.

@DevSecOps data of failed units is fascinating. Just hope I can keep delaying the inevitable to a place where the HVBJB failure is in a “convenient” location.

Do some 100 mph runs up the Grapevine and you will be good to go. Todd can fully recommend his local dealer repair shop to help you out.

 

[DevSecOps]

Do some 100 mph runs up the Grapevine and you will be good to go. Todd can fully recommend his local dealer repair shop to help you out.

Don't get me started... I'm gonna have to find a "safe spot".

 

[Neil4Real]

@heisnuts whatever happened with your millionth HVBJB? Did they confirm it was the remanufactured HVBJB that failed or that bulletin clearing the values was the fix and it was just another false alarm?

 

[woody]

The point is this: No one should pay $60K for a vehicle with a known defective part that the manufacturer refuses to replace.
The only other case where a manufacturer refused to replace a defective part was the GM side-saddle gasoline tanks. NHTSA ordered six million GM trucks (1973 - 2009!!!) recalled and GM flatly refused. Two thousand deaths. (The Dateline expose [1992] was 20 years too late and an example of irresponsible "journalism" just to sell advertising.)

 

[heisnuts]

@heisnuts whatever happened with your millionth HVBJB? Did they confirm it was the remanufactured HVBJB that failed or that bulletin clearing the values was the fix and it was just another false alarm?

After 20 days at the dealer engineering came back with the same repair as before... replace the HVBJB with another remanufactured part plus updating the software that (as I understand it) makes the system a little less sensitive by allowing more DTC counts before triggering the SVS light.

The tech also was able to catch the headlight switch acting up and it threw DTC codes so they replaced the headlight switch with the updated part and he also noticed an axle seal leaking that he replaced as well while it was there.

 

[dtbaker61]

The point is this: No one should pay $60K for a vehicle with a known defective part that the manufacturer refuses to replace.
The only other case where a manufacturer refused to replace a defective part was the GM side-saddle gasoline tanks. NHTSA ordered six million GM trucks (1973 - 2009!!!) recalled and GM flatly refused. Two thousand deaths. (The Dateline expose [1992] was 20 years too late and an example of irresponsible "journalism" just to sell advertising.)

I filed a complaint with NHTSA long ago.... I think its a huge safety issue since it *could* strand someone in an unsafe location, or extreme weather.... I would have thought Ford would be smart enough to change the status to CSR or something that wold allow pro-active replacement to be SCHEDULED if you wanted it.

 

[Logal727]

Do we see any correlation between the heat waves and increased AC usage on the vehicle resulting in more failures? I know the compressor works way harder if people are setting it at is absolutely maximum (Lo). Seeing a couple reddit posts a day with familiar errors (but unverified that its actually HVBJB)

 

[AKgrampy]

I filed a complaint with NHTSA long ago.... I think its a huge safety issue since it *could* strand someone in an unsafe location, or extreme weather.... I would have thought Ford would be smart enough to change the status to CSR or something that wold allow pro-active replacement to be SCHEDULED if you wanted it.

I would think that if there were any instances of the situations you mentioned since Ford released their recall fix the NHTSA would look back into the situation. My assumption is there has not been any reported or not enough reported to open another case. I do wish Ford would have just replaced them all but I understand why they chose not to as it would have been a huge financial hit and not all the HVBJB’s, or so it appears, we’re manufactured incorrectly. I still just drive my GT normally and if it ever fails then I will deal with it. That being said I will not drive to Anchorage when it is 30 below as there are areas in Alaska with no cell coverage!

 

[Hammered]

Do we see any correlation between the heat waves and increased AC usage on the vehicle resulting in more failures? I know the compressor works way harder if people are setting it at is absolutely maximum (Lo). Seeing a couple reddit posts a day with familiar errors (but unverified that its actually HVBJB)

The HVAC's logic has been revamped. I think due to how noisy the compressors are, the compressor will only kick into high with the vehicle moving. As you slow to a stop the AC compressor slows down as well.

For those who want to go ahead and try to time your HVBJB failure, you need to find a good winding road, preferably with hills and accelerate / regen as much as possible as quickly as possible. Someone on here has been able to reliably cook HVBJBs.

 

[mkhuffman]

The HVAC's logic has been revamped. I think due to how noisy the compressors are, the compressor will only kick into high with the vehicle moving. As you slow to a stop the AC compressor slows down as well.

For those who want to go ahead and try to time your HVBJB failure, you need to find a good winding road, preferably with hills and accelerate / regen as much as possible as quickly as possible. Someone on here has been able to reliably cook HVBJBs.

I wonder if there is something else going on with his car. Yes, he runs it hard, but could it be there are more factors than just the HVBJB? Like the current the motors pull, and other tolerances in the car? It seems crazy that @heisnuts has killed so many of them just because he has fun with his car.

 

[Hammered]

I wonder if there is something else going on with his car. Yes, he runs it hard, but could it be there are more factors than just the HVBJB? Like the current the motors pull, and other tolerances in the car? It seems crazy that @heisnuts has killed so many of them just because he has fun with his car.

Honestly I just think he's overheating the contactors that are rated for 500 amps. The GTs will pull over 1000 amps.

Sponsored