U11C4 – BMW DTC

BMW DTC U11C4 – Lost Communication With Driveline Data 1

DTC U11C4 meaning on BMW

The DTC U11C4 code on a BMW indicates a communication error with the Driveline Data 1 module. This means that the vehicle’s onboard computer system is unable to establish communication with the driveline data module, which can affect the transmission and drivetrain operation.

BMW DTC U11C4 symptoms

Symptoms of the BMW DTC U11C4 code may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Transmission shifting issues
• Reduced drivability or performance
• Loss of certain driveline functions

BMW DTC U11C4 causes

The BMW DTC U11C4 code can be triggered by various factors, including:

• Faulty driveline data module
• Wiring or connection issues between the module and the vehicle’s computer
• Software glitches or communication errors

BMW DTC U11C4 seriousness

The DTC U11C4 code should not be ignored, as it can lead to drivability issues and potential transmission problems. It is important to address this code promptly to prevent further damage to the driveline system.

How to diagnose DTC U11C4 on BMW

To diagnose the DTC U11C4 code on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
2. Inspect the driveline data module and its connections for any visible damage or corrosion
3. Check for any software updates or reprogramming needed for the module
4. Perform a communication test to verify connectivity between the module and the vehicle’s computer

How to fix DTC U11C4 on BMW

Fixing the BMW DTC U11C4 code may involve the following steps:

1. Repair or replace any damaged wiring or connections related to the driveline data module
2. Update the software or reprogram the module as needed
3. Replace the driveline data module if it is found to be faulty
4. Clear the fault codes using a diagnostic scanner after the repairs have been completed

How to erase DTC U11C4 on BMW

To erase the DTC U11C4 code on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port
2. Select the option to clear fault codes from the scanner menu
3. Follow the on-screen prompts to erase the DTC U11C4 code
4. Once the code has been cleared, perform a test drive to ensure 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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