BMW DTC U124A – Message Monitoring MSA (Engine Start Automatic)
DTC U124A meaning on BMW
DTC U124A on a BMW refers to Message Monitoring MSA (Engine Start Automatic). This diagnostic trouble code indicates an issue with the automatic engine start feature of the MSA system in the vehicle.
BMW DTC U124A symptoms
Symptoms of BMW DTC U124A may include:
- Engine not starting automatically
- Warning lights on the dashboard
- Reduced engine performance
BMW DTC U124A causes
Common causes of BMW DTC U124A include:
- Faulty MSA system components
- Electrical issues
- Software glitches
BMW DTC U124A seriousness
The seriousness of BMW DTC U124A lies in the potential inconvenience of the automatic engine start feature not functioning properly. While it may not pose an immediate safety risk, it can affect the overall usability and performance of the vehicle.
How to diagnose DTC U124A on BMW
To diagnose DTC U124A on a BMW, a mechanic may:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the MSA system components for any visible damage
- Check the electrical connections related to the MSA system
How to fix DTC U124A on BMW
To fix DTC U124A on a BMW, the following steps may be taken:
- Repair or replace faulty MSA system components
- Address any underlying electrical issues
- Update software if necessary
How to erase DTC U124A on BMW
To erase DTC U124A on a BMW, the fault codes can be cleared using a diagnostic scanner. Once the underlying issue has been addressed and fixed, clearing the fault codes will reset the system and turn off the warning lights on the dashboard.
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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