What is the code U111300?
The u111300 code indicates a lost communication on the can bus network, often caused by faulty wiring, damaged connectors, or malfunctioning control modules. Start by inspecting the can bus wiring harness for corrosion or breaks near the fuse box and ecu. Check all related fuses and relays. The u112300 code indicates communication errors between control modules, often triggering the epc light and power loss. Check the throttle body and accelerator pedal position sensor for faults or poor connections. Inspect wiring harnesses for damage or corrosion. Resetting the ecu after repairs can clear the code.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.Audi A3 often faces intermittent dashboard warnings and vibrations linked to communication errors and sensor faults. Fault code U112300 indicates a communication error between control modules, often causing EPC, ABS, and TPMS warnings. Check the CAN bus wiring harness for damage or loose connections.