Exit Garage, Get a Dozen Errors

[Neil4Real]

If you charged with 120v only for two weeks, then the LVB was not charged during home charging. If it was already in a low charge because it was sitting in a lot for months, then it is very likely it is dead. Another health possibility is that the battery charging module is bad.

Where’s your support in that? The HVB is still supposed to charge the LVB when it detects it low enough, you’ll just get even lower mileage added when this happens.

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[chrisGT]

Where’s your support in that? The HVB is still supposed to charge the LVB when it detects it low enough, you’ll just get even lower mileage added when this happens.

Isn't all the reports in this forum about bad LVBs or bad BCM modules support evidence that the LVB charging system is some MMEs is problematic?
Also the conditions where the car charges the LVB with HVB power are probably more complex than just a simple rule than "charge below x% LVB SoC". It has been reported that there are other parameters like temperature that might prohibit charging the LVB for whatever reason.

Where is your support that the HVB will charge the LVB every time that it is low? How do you know that certain parameters (temperature, LVB state, BCM state, software, etc) would not prevent charging?

 

[JohnFoxeSheets]

If you charged with 120v only for two weeks, then the LVB was not charged during home charging. If it was already in a low charge because it was sitting in a lot for months, then it is very likely it is dead. Another possibility is that the battery charging module is bad.

Thanks. The car was built on 3-Feb, arrived on the lot on Tuesday of this week, and was delivered to me just after midnight on Wednesday. That isn't to say that it's not the LVB. It certainly could be. And I (think I) hope it is...

 

[JohnFoxeSheets]

Many EVs struggle with LVB management, but the Mach E’s seems to do with the car going into deep sleep and not properly waking to keep the LVB properly charged. This is particularly true if your GT got held up or delayed in delivery, where transit mode is a big unknown in how it handles LVB charging.

Actually it arrived two weeks earlier than Ford's original estimate. But who knows?

 

[ElectrifyCLT]

Where’s your support in that? The HVB is still supposed to charge the LVB when it detects it low enough, you’ll just get even lower mileage added when this happens.

Classic case of “yes but…”.

 

[chrisGT]

Thanks. The car was built on 3-Feb, arrived on the lot on Tuesday of this week, and was delivered to me just after midnight on Wednesday. That isn't to say that it's not the LVB. It certainly could be. And I (think I) hope it is...

What many of us try to say is that so many errors are usually because of bad power delivery instead of say the ABS module.
Since many owners have reported issues with the 12v batter or its charging hardware (BCM module and some High Power Junction Box) this is the usual suspect in this forum. But it can also be a bad big battery (has been reported a couple of times) or something else.

Whatever it is is covered under warranty. The only concern is the parts availability. Good luck and keep us posted.

In the meantime get a 240v circuit installed in your garage .

 

[JohnFoxeSheets]

What many of us try to say is that so many errors are usually because of bad power delivery instead of say the ABS module.
Since many owners have reported issues with the 12v batter or its charging hardware (BCM module and some High Power Junction Box) this is the usual suspect in this forum. But it can also be a bad big battery (has been reported a couple of times) or something else.

Whatever it is is covered under warranty. The only concert is the parts availability. Good luck and keep us posted.

In the meantime get a 240v circuit installed in your garage .

Thanks. I agree. (I'm a retired engineer so I just try to share all potentially relevant facts.)

The 240V/60A circuit with a new ChargePoint EVSE should be installed in my garage next week. Hopefully I will have my Mach E GT to plug into it by the time the circuit is installed!

 

[waldo1949]

Today was not a good day. My wife and I were about to head out to run errands when I pulled out of the garage and my two and a half day old Mach E GT threw up literally a dozen serious errors:

Hill Start Assist Not Available

• The anti-lock brake system has a communication problem

Pre-Collision Assist Not Available

• The Collision Warning system has detected either a system fault or an obstructed radar sensor

1 Pedal Drive fault / Press brake pedal to reduce speed

Service AdvanceTrac

Antilock Brake Fault

• The anti-lock brake system has detected an issue with signal from Front Wheel Speed Sensor LH
• …issue with signal from Front Wheel Speed Sensor RH
• …issue with signal from Rear Wheel Speed Sensor LH
• …fault with the Street Wheel Position Sensor signal
• …issue with signal from Front Wheel Speed Sensor RH

Blind Spot Detection with Cross Traffic

• The side obstacle control module has received invalid data from engine control/powertrain module
• …received invalid data from anti-lock brake system control module

Needless to say, I'm really not happy about this. I was even more unhappy when I never heard back from the selling Ford dealership's service department (Dealership #1). So I called then the closest Ford dealership service department and was offhandedly told that the earliest appointment available was the end of next week and maybe not until the following week. I was also told Ford won't authorize a loaner/rental until the car is diagnosed - i.e., not for a week or two. This applies even if you have PremiumCare with enhanced 1st day rental, as I do. I called Ford and the best they could offer was to find a dealership that could service the car sooner, which they did. (Dealership #2)

So the car was flat-bedded to Dealership #2 that Ford CS found and will be looked at first thing Monday. Ford Roadside Assistance did their job, was able to switch the car delivery from Dealership #1 to Dealership #2, and overall were helpful.

The service manager (literally the best I've ever dealt with anywhere) at Dealership #2 was able to look at my car's computer in realtime while it was being taken to the dealership, confirm the problems, and immediately authorized the car rental and got it set up. And since the car rental was closing soon, he called them to confirm I'd arrived, and he also called me to let me know when my car arrived. And he'll be taking care of a cosmetic issue with the car that I discovered after delivery, coordinating with the selling dealership (100 miles away) to get it all done.

Current grades (subject to change as this unfolds)
Mach E: D (hopefully this grade will improve soon!)
Ford Roadside Assistance: B (Good, but they tend to be a bit ponderous when you talk to them - not good when things are time-critical)
Ford Customer Service: B (Nice, helpful, but in the end couldn't authorize car rental right away)
Selling Dealership Service Department: F (they never called me back)
Dealership #1 Service Department: D (they really made it clear they couldn't give a flying $#*@ but at least I was able to speak to a human)
Dealership #2 Service Department Service Manager: A+++ (If there was a letter before A, that would be his grade)

If anyone else has had similar issues with their Mach E anti-lock braking system, I'd love to hear from you!

Did you try just restarting it?

 

[JohnFoxeSheets]

Did you try just restarting it?

Many times.

 

[Dhruval Shah]

Many times.

Mine threw the exact same warning and its in for HVBJB (High voltage battery junction box) and BECM (battery energy control module). Its at the dealership for about 2 months now and i'm in a rental Ford fusion..please keep us updated on what your dealership tells you..hope this helps

 

[JohnFoxeSheets]

Yikes, that's exactly what I've been worried about. I'm so sorry that you've been waiting so long for the repair. I hope mine works out to be faster, though I know of no reason why it would be. ?

 

[JohnFoxeSheets]

I am happy and very relieved to say that after one of the longer weekends of my life, my car appears to be 100%. It seems the issues were software configuration, and not any failing parts. Ford is aware and worked with the dealership to resolve the matter. So (for now at least) the car is fine. It's back in our garage, sucking up electrons...

If you're interested in tech details which frankly are beyond my area of expertise, here is what they did:

Performed CMDTC self test with FDRS retrieved DTC'S B115E, B15E1, AND B15E2 from CMR module. Ran OASIS found SSM 50497 for concern. Cleared DTC'S, performed CMR on demand test, passed. Also retrieved DTC'S C0031, C0037 C003A, C0051 U0100, U0140, U0151, U023A U0293 from ABS module, U0401, U0415:27:2E: 2C from IPMA; U0415:85: 0A, U0415:00: 0A, U0415:00:08 from IPC. Cleared all CMDTC’S listed above. Performed on demand tests on ABS IMPA, IPC, all passed. Road tested and rechecked okay. Operating normally at this time.

If anyone knows what this means beyond, "They tested some stuff, found some configuration errors, then fixed them and verified everyone works now," I'd be happy to hear about it!

 

[JohnFoxeSheets]

You really should name names. At least let us know who the good dealership is. They deserve the recognition.

OK, now that this matter has been resolved, the dealership with great service is Putnam Ford in San Mateo. Specifically, the Service Manager, David Martinez. He's been doing Ford cars for 35 years and has seen everything. He's very customer focused and actually spent about 20 minutes with my wife and me when we picked up our Mach E this afternoon. Great guy, super helpful, and knows how to get things done. While Putnam is a large-ish dealership group in the Bay Area, the Ford store is pretty small. But, on the basis of this one interaction, they do great work and I definitely plan to take my car back there in the future!

 

[Murse-In-Airy]

That’s the kind of info we need around here. Thank You.
I don’t live anywhere within 3000 miles is San Mateo, but plenty of other members do.

 

[crownmountain]

My adventure started stated with trying to use the Parking assist feature. First time showed a system fault. So thinking it was me tried it again, then again, then again and then got this:

It seemed like it was rebooting or something similar because as I was trying to park it manually at this point, it did not seem like I had total control of the throttle. Seemed like it was still trying to park it self. Very unnerving. So shut off the car and sat there doing email for like 15 minutes. Started it and drove off with all being well.

And I did call the dealer and got an appointment for May 4 (4 weeks). I am at PU 2.4.1. One other thing, and not sure what to make of it, is the last time I had a similar problem that car was set to Unbridled as it is now. I am going to switch back to Engaged and try it again. Will report my finding, if any.

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