Lost Communication with Headlamp Control Module
2014-2014 Audi A6 3.0L Supercharged V6
The 2014 Audi A6 is equipped with a 3.0L V6 engine. Below you'll find detailed u0201 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Cannot communicate with the headlamp control or adaptive headlamp module.
Symptoms
- Headlights not activating
- Auto headlights disabled
- Adaptive headlights not swiveling
- DRL malfunction
Common Causes
- Headlamp module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Headlamp assembly failure
Diagnostic Steps
- Check headlamp module fuse
- Test power and ground
- Check CAN wiring
- Test headlamp assembly
- Inspect wiring at headlamp connector
Repair Notes
Check fuses and headlamp connector. Adaptive headlamp motors inside lamp assembly can fail.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0005High Speed CAN Communication Bus (+) High
U0201 on Other Vehicles
Common Questions
What does code U0201 mean on a 2014-2014 Audi A6?
U0201 stands for "Lost Communication with Headlamp Control Module". Cannot communicate with the headlamp control or adaptive headlamp module.
What are the symptoms of U0201 on a Audi A6?
Common symptoms of U0201 include: Headlights not activating, Auto headlights disabled, Adaptive headlights not swiveling, DRL malfunction.
What causes U0201 on a 2014-2014 Audi A6?
Common causes of U0201 include: Headlamp module failure, CAN bus wiring, Module power loss, Fuse blown, Headlamp assembly failure.
Last updated: March 2026