U0105
Lost Communication with Fuel Injector Control Module
2009-2013 Audi A3 2.0L TDI
High SeverityNetworkGeneric (SAE)
Description
Cannot communicate with the fuel injector driver module, separate from the main ECM on some vehicles.
Symptoms
- Engine misfires
- Poor running
- Check Engine Light
- Reduced power
- Fuel injector faults
Common Causes
- Injector driver module failure
- CAN bus wiring
- Module power loss
- Fuse blown
Diagnostic Steps
- Check injector driver module fuse
- Test power and ground at module
- Check CAN wiring to module
- Try direct communication
- Check for related misfire codes
Repair Notes
Check power supply to injector driver module. Common on diesel vehicles with separate injector controllers.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0105 on Other Vehicles
Common Questions
What does code U0105 mean on a 2009-2013 Audi A3?
U0105 stands for "Lost Communication with Fuel Injector Control Module". Cannot communicate with the fuel injector driver module, separate from the main ECM on some vehicles.
What are the symptoms of U0105 on a Audi A3?
Common symptoms of U0105 include: Engine misfires, Poor running, Check Engine Light, Reduced power, Fuel injector faults.
What causes U0105 on a 2009-2013 Audi A3?
Common causes of U0105 include: Injector driver module failure, CAN bus wiring, Module power loss, Fuse blown.