scoopman

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Hit 1780 miles today on my 2022 and got hit with turtle mode, SSN and SVS…High Voltage Powertrain warning on the app. Hopefully my local dealer’s service department is better than their sales department!
when was your car built? June 2022 or later?
 

scoopman

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October 2022, the 30th I believe…weekend right before Halloween
hmmm, you should have the new-design HVBJB, and very low mileage, so that's an interesting outlier perhaps. You didn't do your first 1700 miles in a hill-climb rally race, right?
 

smokefan84

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hmmm, you should have the new-design HVBJB, and very low mileage, so that's an interesting outlier perhaps. You didn't do your first 1700 miles in a hill-climb rally race, right?
Haha no, a very ordinary, boring 10-20 mile round trip commute, Mon-Fri.
 


scoopman

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Haha no, a very ordinary, boring 10-20 mile round trip commute, Mon-Fri.
Hmmm you might want to read your diagnostic codes with an OBD reader to know what you're dealing with here.
 

FarSide

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So I received a SVS immediately upon starting the car this morning under 40 degrees in CT. A Ford Pass message also says POWERTRAIN MALFUNCTION/REDUCED POWER.

Is it possible that I have a false SVS or for some other non HVBJB reason? I left the car at home as I had to get on a commuter train so I did not do a restart or any investigation. I backed in the driveway and will have to deal with it tonight/tomorrow. What is odd is that i have done nothing remarkable with the car recently; no DCFC, no spirited driving and its winter in Connecticut. I WAS L2 charging on my Charpoint charger and I DID get a charge fault error overnight 55% SOC into my charge session. The car stopped charging and Ford Pass sent an error message sometime last night that I had a charge error/replug in (which i did not replug in).

Should I assume the car needs to get checked out and start the process with the dealer (who is familiar with HVBJV) or wait and see if SVS goes away tonight and hope for the best?

- Car has 8,000 miles
- Car was built a few weeks prior to the major recall announcement so it has the old part
- Car errored while on L2 home charging overnight and stopped at 55% SOC
- Car has been driven during the winter unremarkably (no WOT, no super long drives, no DCFC)

Thanks!
 

mkhuffman

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So I received a SVS immediately upon starting the car this morning under 40 degrees in CT. A Ford Pass message also says POWERTRAIN MALFUNCTION/REDUCED POWER.

Is it possible that I have a false SVS or for some other non HVBJB reason? I left the car at home as I had to get on a commuter train so I did not do a restart or any investigation. I backed in the driveway and will have to deal with it tonight/tomorrow. What is odd is that i have done nothing remarkable with the car recently; no DCFC, no spirited driving and its winter in Connecticut. I WAS L2 charging on my Charpoint charger and I DID get a charge fault error overnight 55% SOC into my charge session. The car stopped charging and Ford Pass sent an error message sometime last night that I had a charge error/replug in (which i did not replug in).

Should I assume the car needs to get checked out and start the process with the dealer (who is familiar with HVBJV) or wait and see if SVS goes away tonight and hope for the best?

- Car has 8,000 miles
- Car was built a few weeks prior to the major recall announcement so it has the old part
- Car errored while on L2 home charging overnight and stopped at 55% SOC
- Car has been driven during the winter unremarkably (no WOT, no super long drives, no DCFC)

Thanks!
Same as Scoop recommended just before your post: if you have an OBDII scanner, read the codes and see if what they say. It is possible there is another cause, and the SVS message will go away the next time you start the car. If that is what happens, it is very unlikely caused by the HVBJB.
 

AKgrampy

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Same as Scoop recommended just before your post: if you have an OBDII scanner, read the codes and see if what they say. It is possible there is another cause, and the SVS message will go away the next time you start the car. If that is what happens, it is very unlikely caused by the HVBJB.
Agree with your comment but the difference here is they have the old HVBJB while the previous commenter has a fairly new Mach. Hopefully your advice works though. 9,200 miles and ticking for myself.
 

scoopman

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So I received a SVS immediately upon starting the car this morning under 40 degrees in CT. A Ford Pass message also says POWERTRAIN MALFUNCTION/REDUCED POWER.

Is it possible that I have a false SVS or for some other non HVBJB reason? I left the car at home as I had to get on a commuter train so I did not do a restart or any investigation. I backed in the driveway and will have to deal with it tonight/tomorrow. What is odd is that i have done nothing remarkable with the car recently; no DCFC, no spirited driving and its winter in Connecticut. I WAS L2 charging on my Charpoint charger and I DID get a charge fault error overnight 55% SOC into my charge session. The car stopped charging and Ford Pass sent an error message sometime last night that I had a charge error/replug in (which i did not replug in).

Should I assume the car needs to get checked out and start the process with the dealer (who is familiar with HVBJV) or wait and see if SVS goes away tonight and hope for the best?

- Car has 8,000 miles
- Car was built a few weeks prior to the major recall announcement so it has the old part
- Car errored while on L2 home charging overnight and stopped at 55% SOC
- Car has been driven during the winter unremarkably (no WOT, no super long drives, no DCFC)

Thanks!
Think it's time to get an OBD-II scanner off of Amazon and see what codes you have -- old-part HVBJB damage doesn't require you to drive like future Ford-powertrain sponsored Max Verstappen to have it fail. Just changes in temperature with outside charging can build up damage....
 

A-A-Ron

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Same was with me. But in my case it was unnecessary step. My dealership was familiar with fixing this issue and it’s took for them only few days. I think with time more dealers will know how to fix HVJB failure and opening the case with BEV team wouldn’t needed.
Just got a call from the service writer - they diagnosed the problem Tuesday morning when I brought it in, had the new HVBJB in yesterday morning and installed, and gave it a night to make sure everything was good before calling me. It's ready to be picked up. SVS on Monday evening, shop on Tuesday, fixed before lunch on Thursday. I'm impressed.
 

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Just got a call from the service writer - they diagnosed the problem Tuesday morning when I brought it in, had the new HVBJB in yesterday morning and installed, and gave it a night to make sure everything was good before calling me. It's ready to be picked up. SVS on Monday evening, shop on Tuesday, fixed before lunch on Thursday. I'm impressed.
Is this a new record? ?
 

scoopman

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Just got a call from the service writer - they diagnosed the problem Tuesday morning when I brought it in, had the new HVBJB in yesterday morning and installed, and gave it a night to make sure everything was good before calling me. It's ready to be picked up. SVS on Monday evening, shop on Tuesday, fixed before lunch on Thursday. I'm impressed.
These should all be as fast at this point -- sadly most are not.
 

A-A-Ron

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These should all be as fast at this point -- sadly most are not.
I really expected it'd be 2 weeks - especially since when I was setting up the appointment they informed me it'd be 1-3 days before they could run a diagnostic on it. When I got the call today, I expected they'd tell me they ran the diagnostic and were going to order parts. I was shocked when he told me it was fixed up and ready for pickup. I immediately asked what they did to fix it expecting that he'd say they reset something and he told me they'd replaced the HVBJB and told me they'd ordered it day one, had it day two, and tested it this morning.
 

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Think it's time to get an OBD-II scanner off of Amazon and see what codes you have -- old-part HVBJB damage doesn't require you to drive like future Ford-powertrain sponsored Max Verstappen to have it fail. Just changes in temperature with outside charging can build up damage....
I just get experienced the exact same issue - faulted while charging and then SVS. I drove it and later when I started it the message was gone. Drove home and plugged in, normal charge session. I connected my ODB scanner after the fault cleared, there were several codes related to power faults, all in archive status. I’m guessing if I bring to dealer in this state they won’t be able to do much. Keep driving until it faults again? Until SSN/turtle?
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