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Rlevans

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Wow, sorry. I assume you took it to Lewiston? They too must be frustrated. I just reviewed your previous posts, sure seems to be a software issue, perhaps after that update.

Perhaps a dealer in the Tri-Cities?

Bought from Pullman WA dealer and I think for the most part they are doing what they can.
Unfortunately most of the waiting has been on Ford field service engineer. Waited around 30 days to hear back from them before they could proceed with next steps.

They have tried updates on the modules but I don't think they have tried reprograming which is what I have suggested at this point.
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Jarratt

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Thought Iā€™d post a pic of rear motor out of the truck. I couldnā€™t find any posts of this having been done before.
Rear motor is being replaced in attempt to fix my 1 pedal drive fault.

Apparently the module in question doesnā€™t come separate and the entire assembly gets replaced. šŸ™ˆšŸ¤ž

Resized_20241106_095837_1730922069505.jpeg
I'm gobsmacked! I would have bet that a 1 pedal drive fault was a software issue whose solution could have involved OTA resets. I'm at a loss to try to figure out how a mechanical issue with the motor would trigger that problem.
 

scruvs

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I bought an ostensibly factory service manual from https://www.factory-manuals.com/

I was a little dubious at first, but after reading through parts of it, I think it is legit. I have used it for a couple of things already. It was about $130. I am a hands-on engineer type and I really like having a manual.
What kind of things have you used the manual for? Iā€™m trying to get an idea of the complexity of DIYing this EV compared to typical ICE maintenance of replacing fluids, sensors, pumps.
 

scruvs

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I just lightly scanned this thread, but I'm assuming they tried a software reinstall or fix? I would think there would be a sensor somewhere too which I'm sure they checked.
Not for these trucks, but in general, after software, I tend to blame sensors.

Iā€™m trying to think what sensor there could be that isnā€™t fully software controlled, with the accelerator pedal or otherwise.

And, if itā€™s not the motor or software, I also begin to thing about data connections through wiring harnesses and electrical connectors.

Good luck. Curious to hear what they find.
 

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Rlevans

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I'm gobsmacked! I would have bet that a 1 pedal drive fault was a software issue whose solution could have involved OTA resets. I'm at a loss to try to figure out how a mechanical issue with the motor would trigger that problem.
I am surprised also. One of the stored codes did indicate a control unit on the rear motor communication issue and the part isnā€™t available separately.

I still think itā€™s a software or programming issue.

They have tried updating the modules but I think that would only update them to the stores as-built values that are available to the FDRS as I understand it.
If the as-built data is corrupted it seems like it would just keep reinstalling it ?

It seems like the modules that control 1 pedal function are the APIM and BCM

Iā€™m trying to get them to reset the values of these with known good as-built values, but not sure if thatā€™s a thingā€¦
 

biers

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If youā€™re past 30 days Iā€™d invoke a buy back via lemon law and buy a new one with fresh tax credit and 0% financing.
 

Taddio

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What kind of things have you used the manual for? Iā€™m trying to get an idea of the complexity of DIYing this EV compared to typical ICE maintenance of replacing fluids, sensors, pumps.
I had some equipment temporarily installed by a non-ford mechanic. The mechanic failed to connect the reverse sounder control module. I used the manual to locate the module and reconnect the cable.

I mainly use the manual to become familiar with the vehicle so that I can understand any work that may need to be done to it. Plus, I just like having the manual because I am really into EVs!
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