What are the Symptoms of a Faulty BMW FRM Module

Common symptoms caused by a faulty BMW FRM, also known as a footwell module along with what can be done for a repair. Unfortunately on my car, I did have a learning experience from this issue, I was scanning my car with ISTA while the battery died and this is what caused the module the brick up. For this I am using my 2010 BMW 335d e90 as an example. #BMWFRM #BMWE90 #BMW335d
Foxwell NT530 Scanner: www.foxwelldiag.com/products/...
DeoxIt D100L Kit: caig.com/product/deoxit-deoxi...
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Tools/Supplies Needed:
-OBD2 scanner
-10mm socket with ratchet
-contact cleaner/protectant
Procedure:
If you are scanning the car using ISTA and the FRM is shown in red, this means there is no signal between this module and the scanner. The module heading would be shown in red.
If you are using an OBD2 reader such as this Foxwell scanner I have, a faulty module will show fault codes.
The severity of errors between cars will vary. Beyond bricking up from having the battery die during a scan, other causes which can make the module malfunction would be corrosion on the electrical connectors, voltage spikes or generic voltage issues.
Faults that I experienced which I believe was every single possible problem my door locks not working using the key fob, no signal lights, no fog lights, no high beams, no reverse lights, no license plate lights, no interior lights, no gauge cluster lights, windows not working, no power mirrors, faults codes on the gauge cluster, active headlights not working, driver’s door error saying it’s open, climate control not working correctly, and auto fold mirrors not working. My car was undrivable due to the severity of the errors.
I do however have a friend which a faulty FRM as well however it only shows a few faults such as one headlight and taillight working on a start-up and some FRM fault codes.
As for repairs, this can be something such as cleaning the connectors or more complicated as having the module replaced.
If corrosion is found on the module connections or as preventative maintenance, I would highly recommend using Deoxit D100L which comes in a kit. This kit includes various cleaning tools if there is any corrosion. If there isn’t any corrosion, this solution will protect the connection and prevent that from happening.
Some OBD2 scanners may be able to reset the module, this can be done by yourself or have a shop do this. I tried having this done by a shop, however they were unsuccessful.
Instead I removed the module, then had someone reprogram it completely. This only took about 20 minutes and the VIN is required. You may be lucky to find someone local, other times you’ll have to send it in. Various services can be found online. Equipment can be purchased to do such a procedure, however it’s around $1000 for the proper tools from what I could find.
If the module is damaged, then a replacement is needed. New or used options are available. A used module can be reprogrammed to your car and is most like a much cheaper option than purchasing a new one. Some cars also had interchangeable modules between different series modules which provide more options for replacements.
When scanning the car, always make sure the battery is fully charged. If a scan or programming is done for longer periods, then hook up a trickle charger so the battery doesn’t become depleted.
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[@4DIYers]

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[@MikeTheMechanic392]

Is it possible that during coding frm shows error caused by fault fog light? Or is it definitely frm module itself the issue?

[@mikeymejia2802]

My angel lights will sometimes go off randomly my interior lights will acted up too, I replaced every bulb with new ones .. but I found the problem though. Apparently I was missing a bottom seal on my windshield and lots of water go in and messed up my footwell module. But I fixed it no more water leak now I just need replace my footwell module

[@sipmeister3611]

appreciate the work brother

[@4DIYers]

Thank you!

[@milandordevic9791]

Hello my e91 have the big problem i can turn on the car just when I open the trunk.. when its trunk closed and car turn off the back light working like i press the brake pedal

[@rupaakter4328]

Nice videos

[@4DIYers]

Thank you!

[@notadoctor2598]

How do you differentiate between FRM and Clockspring/steering angle sensor as source of faults?

[@4DIYers]

It's best to scan the codes using a BMW specific code reader, not a generic OBD2 reader.

[@muhammadsadaf7798]

hello i gave a 2012 320d and the right side folding mirror working fine and the windows how ever the left side rear window goes up down inch by inch have to click the button repeatedly and the front passenger left window is can hear click from the module and window but it is not going up or down and also the left folding mirror is not working please help me

[@4DIYers]

Is this only an issue at the driver's switch panel or does it happen on the switch of that door too?

[@muhammadsadaf7798]

@@4DIYers THE DRIVER SIDE EVERYTHING WORKS AND FROM THE DRIVER SIDE IT DOES SAME THING FROM THAT MASTER SWITCH FOR ALL WINDOWS BUT I HAVE REPLACED THAT WITH BRAND NEW AND SAME THING

[@4DIYers]

It could potentially be a wiring issue or maybe a window regulator is failing. My recommendation would be taking off the door panel and using a multimeter to check the plug at the regulator motor. Press it hold the button to see if the power continues. If it does, then it would be a regular issue. If not, then the issue is somewhere else.

[@Robin-Visser]

This is why i bought a skoda

[@4DIYers]

All vehicles have problems unfortunately, especially when they become more complicated. I’ve put about 15,000km on it since I bought it. Fixed the original problems that had, the FRM was my own fault. Right now I need a new harmonic balancer, but other than that the car has been good.

[@dduktube]

@@4DIYers Was it reprogrammed and it worked and had no hardware failure? How was your connectors?

[@briannedillon4810]

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