RAM U11B8: Lost Communication With Integrated Center Stack (ICS)

Is your scanner showing RAM U11B8?
No worries. We'll show you what it means and how to deal with it.

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OBDCodex, Editor

RAM U11B8: Lost Communication With Integrated Center Stack (ICS)

DIY Difficulty Level
Repair Cost
Can I Still Drive?
Yes (Short-term only)

What Does The RAM U11B8 Code Mean?

Bus messages not received from the Integrated Center Stack (ICS) for approximately ten seconds.

What Are The Potential Causes Of The RAM U11B8 Code?

  • Integrated center stack power and ground
  • Integrated center stack
  • Can IHS bus (+) circuit open
  • Can IHS bus (-) circuit open

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

HVAC Heating & Air Conditioning Electrical Diagnostics for U11B8 – 2014 RAM 3500 HD Laramie, pages 210-211.

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