U0201
Lost Communication with Headlamp Control Module
1999-2000 BMW 323i E46 2.5L I6 🇬🇧
Moderate SeverityNetwork
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
- 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
U0201 on Other Vehicles
Common Questions
What does code U0201 mean on a 1999-2000 BMW 323i E46?
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 BMW 323i E46?
Common symptoms of U0201 include: Headlights not activating, Auto headlights disabled, Adaptive headlights not swiveling, DRL malfunction.
What causes U0201 on a 1999-2000 BMW 323i E46?
Common causes of U0201 include: Headlamp module failure, CAN bus wiring, Module power loss, Fuse blown, Headlamp assembly failure.