Mysterious U11E4 code… help!

[JeepersCreepers81]

My MIL has been going on and off for several weeks now… it will be on for a few cycles then go off for a while then come back on. I have been researching all over the internet as to the code it’s throwing U11E4 but I can’t get anything concrete as to what exactly this fault is and what exactly I need to do to fix this. It seems to be some kind of communication issue? Help!

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[tomk62]

My MIL has been going on and off for several weeks now…

I've been having the same problem with my mother in law for years ...

 

[GATORB8]

Transmission Control Module (TCM) (8HP50/850RE) - CAN Communication Messages Missing

 

[GATORB8]

No actual procedure. It says to "perform the comparable CAN C Bus diagnostic tests in the BCM"

 

[GATORB8]

I've been having the same problem with my mother in law for years ...

Your's turns off?

 

[JeepersCreepers81]

No actual procedure. It says to "perform the comparable CAN C Bus diagnostic tests in the BCM"

What the heck does this even mean?

 

[JeepersCreepers81]

Unplugged my tazer lite, reset the MIL, and the same code still lit up like 30 miles later… I guess that eliminates this mysterious code being tazer related

 

[GATORB8]

What the heck does this even mean?

I'm not sure, alldata just links back through to the DTCs. Maybe there's a dealer tech on here that could chime in?

I think it's saying it's a CAN communication issue, and to run a test that proves out what circuits are failing on the BCM.

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