BMW DTC P1930 – Internal Transmission Control Module Monitoring Level 2 Error, Limp Home 1
DTC P1930 meaning on BMW
The DTC P1930 on a BMW refers to an Internal Transmission Control Module Monitoring Level 2 Error, Limp Home 1. This error code indicates a fault in the transmission control module’s internal monitoring system, which has triggered the transmission to go into a limp home mode to prevent further damage.
BMW DTC P1930 symptoms
Symptoms of the BMW DTC P1930 may include:
- Transmission shifting issues
- Limp mode activation
- Warning lights on the dashboard
- Reduced engine performance
BMW DTC P1930 causes
Common causes of the BMW DTC P1930 error code include:
- Faulty transmission control module
- Internal wiring or connection issues
- Software glitches
- Low transmission fluid levels
BMW DTC P1930 seriousness
The DTC P1930 error code should be taken seriously as it can lead to further transmission damage if not addressed promptly. Driving in limp mode for an extended period can also affect the vehicle’s performance and fuel efficiency.
How to diagnose DTC P1930 on BMW
To diagnose the DTC P1930 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the error code
- Inspect the transmission control module for any visible damage
- Check the transmission fluid level and condition
- Conduct a thorough inspection of the wiring and connections
How to fix DTC P1930 on BMW
To fix the DTC P1930 on a BMW, the following steps may be taken:
- Repair or replace the faulty transmission control module
- Address any wiring or connection issues
- Update the transmission control module software
- Ensure proper transmission fluid levels and quality
How to erase DTC P1930 on BMW
To erase the DTC P1930 on a BMW, the error code can be cleared using a diagnostic scanner. After fixing the underlying issue causing the error code, the scanner can be used to reset the code and clear it from the vehicle’s memory.
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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