BMW DTC U122C – Lost Communication With Roadway Tilt
DTC U122C meaning on BMW
The DTC U122C code on a BMW indicates a communication error with the Roadway Tilt sensor. This sensor is responsible for detecting the angle at which the vehicle is tilted in relation to the road surface. When communication with this sensor is lost, the U122C fault code is triggered.
BMW DTC U122C symptoms
Symptoms of the U122C DTC on a BMW may include:
- Warning light on the dashboard
- Inaccurate or erratic tilt readings on the display
- Loss of stability control functionality
BMW DTC U122C causes
The U122C DTC on a BMW can be caused by various factors, including:
- Faulty Roadway Tilt sensor
- Wiring or connection issues
- Software glitches
BMW DTC U122C seriousness
While the U122C DTC may not directly affect the drivability of the vehicle, it can impact the accuracy of stability control systems and other safety features. It is important to address this issue promptly to ensure proper functionality of these systems.
How to diagnose DTC U122C on BMW
To diagnose the U122C DTC on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connections to the Roadway Tilt sensor
- Test the sensor for proper functionality
- Check for any software updates related to the sensor
How to fix DTC U122C on BMW
To fix the U122C DTC on a BMW, the following steps may be taken:
- Replace the faulty Roadway Tilt sensor
- Repair any damaged wiring or connections
- Update the software to the latest version
How to erase DTC U122C on BMW
To erase the U122C DTC on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Once the underlying issue has been addressed and fixed, the code can be erased to reset the system.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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