U0254 – BMW DTC

BMW DTC U0254 – Lost Communication With Remote Start Module

DTC U0254 meaning on BMW

The Diagnostic Trouble Code (DTC) U0254 on a BMW indicates a communication error with the Remote Start Module. This code is triggered when the vehicle’s control module is unable to establish communication with the remote start module, which can lead to issues with the remote start functionality.

BMW DTC U0254 symptoms

Symptoms of the U0254 DTC on a BMW may include:

• Remote start not working
• Key fob not starting the vehicle remotely
• Warning light on the dashboard

BMW DTC U0254 causes

The U0254 DTC on a BMW can be caused by various factors, including:

• Faulty remote start module
• Wiring issues between the control module and remote start module
• Software glitches

BMW DTC U0254 seriousness

While the U0254 DTC may not directly affect the drivability of the vehicle, it can cause inconvenience by disabling the remote start feature. It is recommended to address this issue to ensure the proper functioning of the remote start system.

How to diagnose DTC U0254 on BMW

To diagnose the U0254 DTC on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Check the wiring connections between the control module and remote start module
3. Inspect the remote start module for any visible damage
4. Perform a communication test between the modules

How to fix DTC U0254 on BMW

To fix the U0254 DTC on a BMW, you can try the following solutions:

1. Replace the faulty remote start module
2. Repair any damaged wiring connections
3. Update the software of the control module and remote start module

How to erase DTC U0254 on BMW

To erase the U0254 DTC on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. Once the codes are cleared, you can test the remote start functionality to ensure 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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