2018 JLU problems HELP!

[AshleighN]

Hello this is my post and i desperately need help.
After pulling in to my driveway this morning my jeeps dash lit up like a Christmas tree and the radio value jumped up. So I ran the codes on it and found 19 codes listed.
U0121
U1110
U1120
U11bc
U11bf
U1442
U0001
U0401
U0140
U115f
U11bf
P057c
And a few of these were duplicated to get to get a total of 19.

my theory is it’s a communication issue but how do I go about fixing it?
Could it be a fuse?

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[20-Willys]

How old are your batteries?

 

[tomk62]

This is a common symptom of the original OEM battery(ies) failing if they've never been replaced.

 

[58Willys]

Load test your batteries, if one fails replace both. Probably take care of your issue.

 

[Reinen]

Your theory is on target, it is a communication issue. But why? 98% of the time it's from a power brownout due to failing batteries.

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