What is the error code U1123 on Audi?
Error code u1123 is displayed and the check engine light is on – what does this mean? The dtc u1123 is recognized by the obd system and indicates a communication problem in the can bus network, especially between different control units. The code audi u111300 refers to a specific diagnostic trouble code (dtc) in audi vehicles. This code typically indicates a malfunction in the communication or function of a specific system component.