If you’re replacing the footwell module (FRM) in your 2010 BMW 328i, coding it correctly is crucial for proper functionality. Using an Autel diagnostic tool, you can efficiently code the new FRM. One approach is to restore the module to its factory settings using NCSExpert software. This process utilizes the vehicle’s VO (Vehicle Order), a stored list of module configurations specific to your car, ensuring compatibility.
Often, connecting the new FRM will result in some functions working immediately. However, for complete functionality, factory coding is recommended. Within NCSExpert, specific profiles allow for default coding and custom manipulation. Choosing the factory profile directs the system to read the saved settings from the VO stored in modules like the CAS (Car Access System) and the FRM itself. These are redundant copies, providing a backup in case of corruption.
When upgrading from an FRM1 or FRM2 to an FRM3, consult online forums and resources specifically addressing FRM upgrades for detailed instructions and potential challenges. If factory coding doesn’t automatically update the VIN, you might need to manually change the new module’s VIN using Tool32.
Before coding, address any existing errors in the FRM or other related modules using INPA (Integrated Service Technical Application) to ensure a clean starting point. ISTA/D (Integrated Service Technical Application/Diagnosis) provides a visual representation of your modules and their status, along with detailed explanations of error codes.
As a precautionary measure, create a backup of the new FRM’s default coding by reading it into a trace file and saving it as a manipulation (MAN) file. This allows you to revert to the original settings if needed. When learning to code, it’s good practice to back up all the car’s module settings (approximately a 225kb file) as a master copy. Then, individually read out each module’s coding to a trace file, rename it as a MAN file, make the necessary changes, and code it back into the module. This methodical approach ensures a safety net while exploring coding options. Remember to read and copy the new FRM module’s coding before making any changes as an extra precaution.
