BMW DTC U0123 – Lost Communication With Yaw Rate Sensor Module
DTC U0123 meaning on BMW
DTC U0123 on a BMW indicates a communication error between the vehicle’s control module and the Yaw Rate Sensor Module. The Yaw Rate Sensor is responsible for measuring the vehicle’s rotational movement around its vertical axis, providing crucial data for stability control systems.
BMW DTC U0123 symptoms
Symptoms of DTC U0123 on a BMW may include:
- ABS or stability control warning lights illuminated on the dashboard
- Loss of stability control functionality
- Unexpected braking or stability interventions
BMW DTC U0123 causes
The common causes of DTC U0123 on a BMW include:
- Faulty Yaw Rate Sensor Module
- Wiring or connection issues between the control module and the sensor
- Corrosion or damage to sensor connectors
BMW DTC U0123 seriousness
The seriousness of DTC U0123 on a BMW lies in the compromised stability control system. Ignoring this fault can lead to unsafe driving conditions, especially in emergency maneuvers or slippery road conditions.
How to diagnose DTC U0123 on BMW
To diagnose DTC U0123 on a BMW, follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the vehicle’s control module
- Inspect the wiring and connectors leading to the Yaw Rate Sensor Module for any visible damage or corrosion
- Perform a sensor test to check the functionality of the Yaw Rate Sensor
How to fix DTC U0123 on BMW
To fix DTC U0123 on a BMW, consider the following actions:
- Replace the faulty Yaw Rate Sensor Module if diagnosed as the root cause
- Repair or replace any damaged wiring or connectors related to the sensor
- Clear the fault codes and perform a test drive to ensure the issue is resolved
How to erase DTC U0123 on BMW
To erase DTC U0123 on a BMW, use a diagnostic scanner to clear the fault codes stored in the vehicle’s control module. After clearing the codes, perform a test drive to verify that the issue has been resolved.
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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