U114B – BMW DTC

BMW DTC U114B – Lost Communication With Engine Control Torque 1

DTC U114B meaning on BMW

DTC U114B on a BMW indicates a communication error between the Engine Control Module (ECM) and the Torque Control Module 1. This error code signifies that the ECM is unable to receive or transmit data to the Torque Control Module 1, which can lead to performance issues in the vehicle.

BMW DTC U114B symptoms

Symptoms of DTC U114B on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Reduced engine performance or power loss
• Transmission shifting issues
• Vehicle going into limp mode

BMW DTC U114B causes

The common causes of DTC U114B on a BMW include:

• Faulty wiring or connectors between the ECM and Torque Control Module 1
• Defective Torque Control Module 1
• Software issues in the ECM or Torque Control Module 1
• Interference from other electronic components

BMW DTC U114B seriousness

DTC U114B should not be ignored as it can lead to potential drivability issues and affect the overall performance of the vehicle. It is recommended to address this error code promptly to prevent further damage to the vehicle.

How to diagnose DTC U114B on BMW

To diagnose DTC U114B on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the ECM
2. Inspect the wiring and connectors between the ECM and Torque Control Module 1 for any damage or loose connections
3. Check for any software updates available for the ECM and Torque Control Module 1
4. Perform a communication test between the ECM and Torque Control Module 1

How to fix DTC U114B on BMW

To fix DTC U114B on a BMW, you can try the following solutions:

1. Repair or replace any damaged wiring or connectors between the ECM and Torque Control Module 1
2. Update the software in the ECM and Torque Control Module 1 to the latest version
3. Replace the Torque Control Module 1 if it is found to be defective
4. Clear the fault codes using a diagnostic scanner after the repairs have been made

How to erase DTC U114B on BMW

To erase DTC U114B on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After performing the necessary repairs and ensuring that the issue has been resolved, you can use the scanner to erase the fault code and reset the Check Engine Light.

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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