U0171
Lost Communication with Lane Departure Module
2006-2011 BMW 325i 3.0L I6 N52 🇩🇪
Low SeverityNetwork
Description
Cannot communicate with the lane departure warning or lane keeping assist module.
Symptoms
- Lane departure system disabled
- LDW warning light
- Lane keeping assist not available
- Camera error message
Common Causes
- Lane departure module failure
- CAN bus wiring
- Module power loss
- Camera failure
- Windshield calibration needed
Diagnostic Steps
- Check lane departure module fuse
- Test power and ground
- Check CAN wiring
- Inspect windshield camera
- Check for calibration need after windshield replacement
Repair Notes
Check fuses. System often needs recalibration after windshield replacement.
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
U0171 on Other Vehicles
Common Questions
What does code U0171 mean on a 2006-2011 BMW 325i?
U0171 stands for "Lost Communication with Lane Departure Module". Cannot communicate with the lane departure warning or lane keeping assist module.
What are the symptoms of U0171 on a BMW 325i?
Common symptoms of U0171 include: Lane departure system disabled, LDW warning light, Lane keeping assist not available, Camera error message.
What causes U0171 on a 2006-2011 BMW 325i?
Common causes of U0171 include: Lane departure module failure, CAN bus wiring, Module power loss, Camera failure, Windshield calibration needed.