Codes found on new 2025 1500 Rebel

[benb1976]

Currently at 1900 miles on a new Rebel. I got a new scan tool by BlueDriver since I have a rumble/stumble at around 15 seconds after a cold-start high-idle startup which lasts only a few seconds. Awesome truck, this is my only issue/symptom, and no CEL, but I wanted to scan to see for myself. Here are my codes (not sure if these codes are related).

U0155-Lost Communication With Cluster/CCN
U0402-Invalid Data Received From TCM
U145D-Implausible Data Received From TCM On D-PT
B15A1-Media Port 1 Connection

Wondering what these could be. The dealer said that they found these codes when scanning my truck but without a CEL or any TSB specific codes they cant apply any TSB. Apparently my codes dont match with any TSB, only my stumble symptom above. I am not happy the dealer didnt offer to do any further inspection and offer the RSU or Rapid Service Updates which I heard about here.

Ive read alot to find out about others codes here in some misfire posts or fuel injector discussions, but thought Id put this one out there to see if any others are experiencing this and have the same codes.

 

[Cbty2050]

Awesome truck, this is my only issue/symptom

How long ago did they set?

 

[benb1976]

I don't know exactly, the dealer told me only that they were stored codes. After my visit, at home I deleted the codes with my BlueDriver but then they appeared again right away.