U0172
Lost Communication with Heads-Up Display Module
2012-2015 BMW 320i 2.0L I4 Turbo N20
Low SeverityNetworkGeneric (SAE)
Description
Cannot communicate with the secondary or extended heads-up display controller.
Symptoms
- HUD content missing
- HUD data not refreshing
- HUD brightness not adjusting
- Partial HUD display
Common Causes
- HUD controller failure
- CAN bus wiring
- Module power loss
- Fuse blown
Diagnostic Steps
- Check HUD controller fuse
- Test power and ground
- Check CAN wiring
- Test HUD display unit
- Check combiner glass position
Repair Notes
Check fuses and combiner glass alignment. HUD module may need reprogramming.
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
U0172 on Other Vehicles
Common Questions
What does code U0172 mean on a 2012-2015 BMW 320i?
U0172 stands for "Lost Communication with Heads-Up Display Module". Cannot communicate with the secondary or extended heads-up display controller.
What are the symptoms of U0172 on a BMW 320i?
Common symptoms of U0172 include: HUD content missing, HUD data not refreshing, HUD brightness not adjusting, Partial HUD display.
What causes U0172 on a 2012-2015 BMW 320i?
Common causes of U0172 include: HUD controller failure, CAN bus wiring, Module power loss, Fuse blown.