U0105high severityNetwork
Lost Communication with Fuel Injector Control Module
on 2010 Audi A3 2.0L TDI I4 · FWD
What this code means
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.
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Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus