In this guide, we take a look at how to troubleshoot BMW Universal Charging and the hands-free facility, also known as the ULF module or MULF2. 

UFL is responsible for USB-Audio (USB port in the center console) and Bluetooth.

How to diagnose the BMW ULF module

For this step, you will need a diagnostic scanner that is capable of reading, clearing, and performing tests on BMW vehicles.

What you will need

Procedure

  1. Plugin the OBD-II scanner into the diagnostic port under the dashboard.diagnose bmw ULF fault code via obd2 port
  2. Turn on the ignition, don't start the engine.turn on bmw ignition to read ULF fault codes
  3. Turn on the scanner and select your BMW chassis. Next, Select the Control Units menu.bmw ULF control unit module reading codes
  4. Select the ULF Module.
  5. Once you enter the ULF module, you will be able to do the following.
    • Read Codes from ULF Module
    • Clear Codes from ULF Module
    • Perform Adaptations, Activations, Test

If you are experiencing problems a good starting point is to read fault codes from the ULF module. If any code is showing PRESENT status the problem needs to be fixed before the code can be cleared.

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