U10BA

U10BA - Local Data Bus: No Communication

Possible Symptoms

• Control Modules connected to Local Databus not functioning

Possible Causes

• Wiring/Connectors from/to Control Modules in Local Databus faulty
• Control Module in Local Databus faulty

Possible Solutions

• Check/Repair Wiring/Connectors from/to Control Modules in Local Databus
• Check/Replace Control Module in Local Databus

Special Notes

• When found in MLBevo based 01-Engine control modules such as the NAR market (4M/F7) chassis Q7 with CREC 3.0L Gasoline engine make sure the V544 Radiator Shutter Motor wiring is OK.
  • This damage caused that DTC on a 2017 Q7