BMW ULF Universal Charging and Handfree Module

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

• BMW OBD-II Scanner

Procedure

1. Plugin the OBD-II scanner into the diagnostic port under the dashboard.
2. Turn on the ignition; don't start the engine.
3. Turn on the scanner and select your BMW chassis. Next, Select the Control Units menu.
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 shows PRESENT status, the problem needs to be fixed before the code can be cleared.