U119E – BMW DTC

BMW DTC U119E – Lost Communication With FlexRay

DTC U119E meaning on BMW

The DTC U119E code on a BMW indicates a communication error with the FlexRay network. FlexRay is a high-speed communication protocol used in modern vehicles to transmit data between various control modules. When this code is triggered, it means that the vehicle’s onboard computer system has lost communication with the FlexRay network.

BMW DTC U119E symptoms

Symptoms of the DTC U119E code on a BMW may include:

• Check Engine Light (MIL) illuminated
• Loss of communication with certain vehicle systems
• Erratic behavior of electronic components

BMW DTC U119E causes

The DTC U119E code on a BMW can be caused by various factors, including:

• Faulty FlexRay communication module
• Loose or damaged wiring/connectors in the FlexRay network
• Interference from other electronic devices

BMW DTC U119E seriousness

The DTC U119E code should be addressed promptly as it can lead to communication issues between critical vehicle systems. Ignoring this code may result in performance issues or safety concerns.

How to diagnose DTC U119E on BMW

To diagnose the DTC U119E code on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system.
2. Inspect the FlexRay communication module for any visible damage or signs of malfunction.
3. Check the wiring and connectors in the FlexRay network for loose connections or corrosion.
4. Perform a communication test to verify the integrity of the FlexRay network.

How to fix DTC U119E on BMW

To fix the DTC U119E code on a BMW, consider the following steps:

1. Replace the faulty FlexRay communication module if necessary.
2. Repair or replace any damaged wiring or connectors in the FlexRay network.
3. Ensure that the FlexRay network is properly shielded from interference.
4. Clear the fault codes using a diagnostic scanner after completing the repairs.

How to erase DTC U119E on BMW

To erase the DTC U119E code on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Select the ¨Erase Codes¨ or ¨Clear Codes¨ option on the scanner.
3. Follow the on-screen prompts to confirm the code deletion.
4. Once the DTC U119E code is successfully cleared, verify that the Check Engine Light is no longer illuminated.

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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