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U0500 Lost Communication With Cluster/CCN Error

joeyd001

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Jun 5, 2025
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Hello,

2025 1500 Laramie with 8,500 miles and I finally made it into the check engine light club! Yeah me! The code returned is ‘U0500 Lost Communication With Cluster/CCN’. I’ve googled and seen possible causes and there doesn’t seem to be any DIY fixes. Anyone have any experience with this and have any ideas of things to look at or try before I take it in?

Thanks in advance.
 

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