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Powertrain Malfunction/ Reduced Power

bmwhitetx

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If you have an OBD dongle and the free CarScanner app, you can quickly determine if it is the battery module (to keep dealer honest).

Here are my readings before I experienced the failure and after:
Ford F-150 Lightning Powertrain Malfunction/ Reduced Power 1738854056894-ps
Ford F-150 Lightning Powertrain Malfunction/ Reduced Power 1738854070464-j7

Note there are values for Voltage variation and Percent variation. I don't know what the cutoff is but if the variation is over 1-2% (mine was 4.32%), I would be concerned.

My % variation was always below 1% until that fateful day last March.
Ford F-150 Lightning Powertrain Malfunction/ Reduced Power 1738854349513-o5
 
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Zprime29

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If you have an OBD dongle and the free CarScanner app, you can quickly determine if it is the battery module (to keep dealer honest).

Here are my readings before I experienced the failure and after:
1738854056894-ps.jpg
1738854070464-j7.jpg
I'm unable to find those values when I scan what's available. Does one need to load a custom file to find that?
 

Zprime29

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Been reading through this for several days. Getting the same Powertrain malfunction code, but no reduced power. Overnight it resets then comes back on again the following day. Truck started this on day 1 after picking new truck up from GA and driving to AL. Local dealers aren’t being much help and no loaners available so I have to wait until I can get another vehicle.

24 ER lariat now with 700 miles. Started at 250 and happens every day. The only problem is it sometimes stays in drive when parked and you have to shut it down for 10 mins then restart. Any ideas or help?
I agree with @The Weatherman, sounds like a bad shifter.
 

bmwhitetx

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I'm unable to find those values when I scan what's available. Does one need to load a custom file to find that?
On the main page go to Settings, then Connection Profile. Choose Ford then Mustang Mach-E / F-150 Lightning/ E-Transit EV:

Ford F-150 Lightning Powertrain Malfunction/ Reduced Power 1738859812358-we
 

adam11209

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If you have an OBD dongle and the free CarScanner app, you can quickly determine if it is the battery module (to keep dealer honest).

Here are my readings before I experienced the failure and after:
1738854056894-ps.jpg
1738854070464-j7.jpg

Note there are values for Voltage variation and Percent variation. I don't know what the cutoff is but if the variation is over 1-2% (mine was 4.32%), I would be concerned.

My % variation was always below 1% until that fateful day last March.
1738854349513-o5.jpg
That is great advice, thank you. I will try that and see what my readings are.
 

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adam11209

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If you have an OBD dongle and the free CarScanner app, you can quickly determine if it is the battery module (to keep dealer honest).

Here are my readings before I experienced the failure and after:
1738854056894-ps.jpg
1738854070464-j7.jpg

Note there are values for Voltage variation and Percent variation. I don't know what the cutoff is but if the variation is over 1-2% (mine was 4.32%), I would be concerned.

My % variation was always below 1% until that fateful day last March.
1738854349513-o5.jpg
Well it seems that I have a pack or module failure like you said. I have a 4.7% variation. Thanks again for the advice, I guess I will need a new battery.

Ford F-150 Lightning Powertrain Malfunction/ Reduced Power IMG_9388
 

ahoneycutt4

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There have been issues reported withe shifter mechanism that will throw that code and cause problems with shifting.
The shifter has been giving issues and not laying down. I agree with you and will schedule a trip to the dealership. Just crazy how it’s started on day 1. Never would have expected that from a new truck.
 

ahoneycutt4

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Next time it throws the code drive to the Ford dealer, do not turn the vehicle off, and have them look at it before the code clears. Your new, under warranty vehicle should not be doing that and it is Ford’s responsibility to repair it. Once they see what trouble code it is throwing you’ll have a better idea of how long it will take to repair.
Agreed. That is the plan because everyday it clears out until it happens again. It seems to only happen if I try to use my worktop and stow the shifter.
 

TaxmanHog

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So yesterday I experienced the dreaded service soon orange wrench icon. I have 57% power available, and the ford app says powertrain or 4 wheel drive fault. I think I’m looking at new battery modules. Truck is at 52,000 miles.
I moved your post and related responses into the main thread on this issue, please let us know how you make out with the service process.
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