control unit menu on obd-II scanner

BMW TMFA & TMBF Door Module Diagnosis

BMW door modules are a component of the passive safety system part of Advanced Safety Electronics. One of the door modules’ main functions is to actuate the front doors’ power windows.

BMW vehicles have more than one door module.

  • TMFA driver’s door module
  • TMBF front-passenger door module

How to Diagnose BMW Door Module

If you are experiencing problems with your front windows, a good starting point is to read fault codes from the BMW DOOR module. A BMW diagnostic scanner is needed to read fault codes from the door modules.


The YOUCANIC Full System Scanner can diagnose (read and clear) fault codes on every control module of a BMW vehicle.


  1. Plugin the OBD-II scanner into the diagnostic port under the dashboard.Connect OBD-II Scanner to BMW OBD-II Port
  2. Turn on the ignition; don’t start the engine.turn on ignition to accessories position
  3. Turn on the scanner and select your BMW chassis. Next, Select the Control Units menu.scanning bmw using obd2 scanner
  4. Select the BMW TMFA module for the driver’s door or the TMBF module for the passenger door.
  5. Once you enter the BMW DOOR module, you can do the following.
    • Read Codes from BMW DOOR Module
    • Clear Codes from BMW DOOR Module
    • Perform Adaptations, Activations, Tests

If any code shows PRESENT status, the problem needs to be fixed before the code can be cleared.

Always verify that the scanner you use supports your BMW model and year. Full system scanners known to work on BMW vehicles can range in price from $150 to $800.

We hope you find the BMW TMFA & TMBF Door Module Diagnosis guide helpful. Check these troubleshooting and repair guides for more help on your BMW.


  • Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

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