What is the code U111300 on a 2013 Audi?
More specifically, u111300 could suggest a problem related to can bus communication failure, which is the system that allows the various control modules (like the engine control unit, airbag control unit, etc. This issue could be caused by: a faulty sensor. fault code u111300 indicates a communication error between control modules, often due to wiring issues or can bus interruptions.The U112300 error indicates a communication fault between the AC control module and other vehicle systems. Start by checking the AC control unit’s wiring harness for loose or corroded connectors. Inspect the CAN bus lines for damage or shorts. Resetting the error codes with a diagnostic tool can help.