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U3012 error code?

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Old May 8, 2024 | 09:47 AM
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U3012 error code?

This is my first solid check engine light with this truck; code U3012. I cleared it and will see how things go? Anyone else experience this code? Any info would be appreciated. Thanks and have a good day.
 
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Old May 8, 2024 | 11:12 AM
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Originally Posted by MeTo
This is my first solid check engine light with this truck; code U3012. I cleared it and will see how things go? Anyone else experience this code? Any info would be appreciated. Thanks and have a good day.
I haven't see this but a quick google search came up with this:

https://www.fordtremor.com/threads/c...ormance.15629/
 
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Old May 8, 2024 | 11:36 AM
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U codes are related to the COMMs circuits, need a scope to diagnose..
 
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Old May 8, 2024 | 11:37 AM
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https://www.ford-trucks.com/forums/1...l#post20832161
 
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Old May 8, 2024 | 01:41 PM
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I just got back from running some errands, about 85 miles. No light. I read the TSB 23-2077 for this issue and the guy's comment about him taking his truck in to get the program update. He mentioned his truck rarely does the sick crow sound after and no more light. Mine does it a lot. Hopefully I can get it done under warranty also???

Thanks for the comments.
 
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Old Jun 14, 2024 | 02:24 PM
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Originally Posted by MeTo
This is my first solid check engine light with this truck; code U3012. I cleared it and will see how things go? Anyone else experience this code? Any info would be appreciated. Thanks and have a good day.
I had the same on my 2021 and the dealer told me the light keeps coming back it’s a software issue goes working on it . They checked my batteries and other things same code keeps getting kicked out . Even new pcm still happening currently waiting on a fix from ford
 
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Old Jun 14, 2024 | 02:29 PM
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U codes are communication codes, you will need to get a scope on the comms lines and start proper diagnosis.. This is not a case of using a scanner to fix..
 
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Old Jun 14, 2024 | 03:18 PM
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I deleted the code on May 6th and it's not been back. I'm still going to get the TSB update on the 20th. I have a friend who has done electronic/electrical work for Ford as a career. It will be a good opportunity to pick his brain and check if he would be willing to tweak a few things?
 
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