Gmc code u0073 chevy silverado 1500. It also has the Service engine light, ABS light, brake light, traction control light and TPMS light. How to fix a U0073 Code: Control Module Communication Bus "A" Off The U0073 means control modules and CAN Bus are not communicating correctly. Aug 30, 2018 · I've seen a few threads about this topic but no solutions, only frustration. The most common causes of U0073 are Sep 10, 2024 · In contrast, the Chevrolet Silverado often has U0073 codes due to problems with the body control module (BCM) and wiring. The CAN (Controller Area Network) is a protocol that Is your Chevy Silverado struggling to start or move off the ground? A code U0073 may be the source of this issue. By focusing on these models, you can check important parts like the PCM, TCM, and BCM, and look for any wiring damage or corrosion. This code appears when something has interrupted the communication between two of your Silverado's control modules. That means that the CAN bus controller has detected a problem with a cable that is used for communication between several modules. I have codes U0100, U0073 and P0446. Code U0073 GMC Description The U0073 GMC code indicates that there is a communication bus off between one or more control modules in the vehicle. Control modules are electronic components that communicate with each other to ensure the proper functioning of various systems in the vehicle, such as the engine, transmission, ABS, and airbags. I have a 2011 Silverado 1500 ext cab 4x4 WT with a 4. Jun 2, 2021 · U0073 Definition: Control Module Communication Bus"A" Off U0073 is a fairly common trouble code. . Has anyone found an Mar 29, 2025 · The U0073 code is defined as a “Control module communication bus A off”. It is generic, so it has the same meaning for your Chevy Silverado as it would any other. 8. whrqc jwd eqghke kpvqjre uemdv ytaanso tgbvshzu tbrlbh ahwdewa zpthld