Safety Recall 22S41 - 2021-2022 Mach E - HVBJB Recall [high voltage battery main contactors may overheat]

[RickMachE]

This caught my eye. Counterintuitive city. Why would this be the case, do you suppose?

The OBD interface is very SLOW. There is no high speed interface, such as ethernet.

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[Neil4Real]

This caught my eye. Counterintuitive city. Why would this be the case, do you suppose?

They're faster once deployed to your car, but generally come a bit later than when the dealers have access to applying them. In this case, hopefully the OTA isn't too far behind the dealer release.

 

[agoldman]

The OBD interface is very SLOW. There is no high speed interface, such as ethernet.

What year is this? Geeze...

 

[macchiaz-o]

What year is this? Geeze...

2022.

 

[shelnian]

This has been asked multiple times, and answers made up multiple times. The correct answer is that we have no idea what the software fix does.

NHTSA Report indicates "How Remedy Component Differs from Recalled Component : The updated SOBDMC software (LJ98-14G069-AXG, LJ98-14G069-AZG, LJ98-14G069-BBG, LJ98-14G069-BDG) will monitor contactor temperature and intelligently reduce battery power to prevent damage to the contactor. The updated BECM software (NJ98-14C197-AE, NJ98-14C197-BD) will monitor contactor resistance to identify an overheated contactor and reduce vehicle power to prevent further damage."
This clearly indicates that if an overheating event is detected, the software will "reduce battery/vehicle power". If you're DC fast charging when the overheating event is detected, then the system will reduce the battery charging current, if you're driving when the overheating event is detected, then the system will reduce vehicle power (current to the motor(s)).
How big an impact this has, in either condition, is not specified.

 

[RickMachE]

Good find!

 

[StillWaitingForMachE]

NHTSA Report indicates "How Remedy Component Differs from Recalled Component : The updated SOBDMC software (LJ98-14G069-AXG, LJ98-14G069-AZG, LJ98-14G069-BBG, LJ98-14G069-BDG) will monitor contactor temperature and intelligently reduce battery power to prevent damage to the contactor. The updated BECM software (NJ98-14C197-AE, NJ98-14C197-BD) will monitor contactor resistance to identify an overheated contactor and reduce vehicle power to prevent further damage."
This clearly indicates that if an overheating event is detected, the software will "reduce battery/vehicle power". If you're DC fast charging when the overheating event is detected, then the system will reduce the battery charging current, if you're driving when the overheating event is detected, then the system will reduce vehicle power (current to the motor(s)).
How big an impact this has, in either condition, is not specified.

Given that this happens to a small percentage of vehicles, I wouldn't expect a noticeable difference for most people imo

 

[Neil4Real]

Given that this happens to a small percentage of vehicles, I wouldn't expect a noticeable difference for most people imo

No one knows, and I get that it is your opinion, but it will also depend on how sensitive they make it. I think the biggest concern, which is already rampant throughout this thread, is if it limits GTs even more. We already only get 5 seconds of true full power, so if this makes that even shorter, that'd be insane.

 

[sotek2345]

Given that this happens to a small percentage of vehicles, I wouldn't expect a noticeable difference for most people imo

I will just add that it has only happened to a small percentage of vehicles "so far". These vehicles are still very young and we have no idea what the failure rate will look like over time.

 

[BMT1071]

NHTSA Report indicates "How Remedy Component Differs from Recalled Component : The updated SOBDMC software (LJ98-14G069-AXG, LJ98-14G069-AZG, LJ98-14G069-BBG, LJ98-14G069-BDG) will monitor contactor temperature and intelligently reduce battery power to prevent damage to the contactor. The updated BECM software (NJ98-14C197-AE, NJ98-14C197-BD) will monitor contactor resistance to identify an overheated contactor and reduce vehicle power to prevent further damage."
This clearly indicates that if an overheating event is detected, the software will "reduce battery/vehicle power". If you're DC fast charging when the overheating event is detected, then the system will reduce the battery charging current, if you're driving when the overheating event is detected, then the system will reduce vehicle power (current to the motor(s)).
How big an impact this has, in either condition, is not specified.

It may be a large impact in the event of a malfunction. No reason to expect a performance reduction under normal operation. Every throttle-by-wire ICE vehicle on the road will go into a severely reduced power mode if there is a loss of correlation between any of the APP and TP sensors. When all the sensors agree you have full power.
Hell, diesels will derate if you ignore DPF regen requests too many times.

 

[StillWaitingForMachE]

I will just add that it has only happened to a small percentage of vehicles "so far". These vehicles are still very young and we have no idea what the failure rate will look like over time.

Fair.

 

[Socalsp3]

NHTSA Report indicates "How Remedy Component Differs from Recalled Component : The updated SOBDMC software (LJ98-14G069-AXG, LJ98-14G069-AZG, LJ98-14G069-BBG, LJ98-14G069-BDG) will monitor contactor temperature and intelligently reduce battery power to prevent damage to the contactor. The updated BECM software (NJ98-14C197-AE, NJ98-14C197-BD) will monitor contactor resistance to identify an overheated contactor and reduce vehicle power to prevent further damage."
This clearly indicates that if an overheating event is detected, the software will "reduce battery/vehicle power". If you're DC fast charging when the overheating event is detected, then the system will reduce the battery charging current, if you're driving when the overheating event is detected, then the system will reduce vehicle power (current to the motor(s)).
How big an impact this has, in either condition, is not specified.

i have a rwd select. the least likely configuration to fail. im not going to update until i see what the fix does. DCFC is slow enough as it is. Acceleration is ok and don't want that to be affected either.

 

[nvabill]

Blah blah blah blah blah, page 59, blah blah blah blah blah, let's see if we can make it 159 pages!

Wow, blah, blah, blah, blah, blah, guys I was just kidding but by golly I think you may actually take this thread to 159 pages, you've already made it to 100, incredible!

 

[Janet]

Check your VIN here to see if your car is part of this recall:

https://vinrcl.safercar.gov/vin/

 

[Secret Sauce]

The OBD interface is very SLOW. There is no high speed interface, such as ethernet.

On good authority? Anything greater than around 10mbs (the speed of old school ethernet) is probably going to be faster than OTA even assuming a good, solid wireless connection and no server stress. Either way, whichever gets to the cars faster is the faster solution.

They're faster once deployed to your car, but generally come a bit later than when the dealers have access to applying them. In this case, hopefully the OTA isn't too far behind the dealer release.

Current owners should be happy to wait for the OTA rollout, unless they're freaked out by the possibility of overheating the connector. Since this has been documented less than 300 times so far it's probably not a thing most owners need to worry about. New cars sitting on lots that can't be delivered to customers, this solution can't wait, either for the customers or Ford. Delivering them should be the priority. But who knows?

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