BMW DTC U0137 – Lost Communication With Trailer Brake Control Module
DTC U0137 meaning on BMW
DTC U0137 on a BMW indicates a communication error between the vehicle’s control module and the trailer brake control module. This error code signifies that the control module is unable to establish communication with the trailer brake control module, which can affect the functionality of the trailer brake system.
BMW DTC U0137 symptoms
Symptoms of DTC U0137 on a BMW may include:
- Malfunctioning trailer brake system
- ABS warning light illuminated on the dashboard
- Loss of communication with the trailer brake control module
BMW DTC U0137 causes
Common causes of DTC U0137 on a BMW include:
- Faulty trailer brake control module
- Wiring issues or loose connections between the control modules
- Software glitches in the control modules
BMW DTC U0137 seriousness
The seriousness of DTC U0137 on a BMW lies in the potential safety implications, especially if the trailer brake system is affected. Proper functioning of the trailer brake system is crucial for towing safety, so addressing this issue promptly is important.
How to diagnose DTC U0137 on BMW
To diagnose DTC U0137 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes from the vehicle’s control module.
- Inspect the wiring and connections between the vehicle’s control module and the trailer brake control module for any damage or loose connections.
- Check the trailer brake control module for any signs of malfunction or software issues.
How to fix DTC U0137 on BMW
To fix DTC U0137 on a BMW, you can try the following solutions:
- Repair or replace any damaged wiring or connections between the control modules.
- If the trailer brake control module is faulty, replace it with a new one.
- Update the software in the control modules to address any glitches causing the communication error.
How to erase DTC U0137 on BMW
To erase DTC U0137 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s control module. Once the 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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