Cadillac U1026: Loss of ATC Class 2 Communication
Is your scanner showing Cadillac U1026?
No worries. We'll show you what it means and how to deal with it.
Cadillac U1026: Loss of ATC Class 2 Communication
OVERVIEWWhat Does The Cadillac U1026 Code Mean?
Key on or engine running; and a module detected that it could not communicate with the ATC controller for 1 second. Modules connected to the Class 2 circuit monitor for data communications during normal vehicle operation.
What Are The Potential Causes Of The Cadillac U1026 Code?
- Check for a loose connection at the ATC module
- Test the main power and ground circuits to the ATC module
- Check the Class 2 serial data circuit to the ATC module
- ATC module may have failed
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
>>> Dorman 599-105 Remanufactured Transfer Case Control Module
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Cadillac U1026, DTCDECODE.
