Cadillac U1151: No Communication With Vehicle Interface Unit
Is your scanner showing Cadillac U1151?
No worries. We'll show you what it means and how to deal with it.
Cadillac U1151: No Communication With Vehicle Interface Unit
OVERVIEWWhat Does The Cadillac U1151 Code Mean?
Key on, and a message from a learned ID number was not detected for the five seconds. Modules on the Class 2 circuit monitor for data communications during vehicle operation.
What Are The Potential Causes Of The Cadillac U1151 Code?
- VIU Class 2 circuit is open, shorted to ground or to B+
- VIU ignition power circuit has a high resistance condition
- VIU main ground circuit(s) has a high resistance condition
- VIU (module) may have failed and is pulling the circuit low
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
>>> Dorman 86689C 399 PC Automotive Electrical Repair Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Cadillac U1151, DTCDECODE.
