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#1
01-25-2021, 01:36 AM
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FRM shot for a second time.
Long story short I have a new to me 2011 35i. Has 100k on it and spent a few thousand getting it to a good running state and did some preventative maintenance too. Thanks for everyone when I originally posted my concerns back in November. I started playing with INPA a few months back and would constantly have a code related to the FRM- something like A8A6 which I believe translated to some sort of Corning light out. Which it wasn’t, which I was then informed means the FRM is “fried” and has some sort of short circuit or something. I coded some options into other modules of the car no problem. Got the the FRM and it was lights out, totally fried. Removed the FRM sent it to some company that fixes these issues. I believe the term is resetting circuits/bench flashing. Nonetheless I got the unit back plug and play was good to go, no further coding. Left the FRM coding that I wanted to do alone. Checked INPA again today and I’m back to square one. Have a fault code for no reason. What could be the issue here? Only thing I know is battery was probably never registered when it was replaced about 2 years ago. I also have a seat position warning that won’t go away. All related to battery? Not sure. Hope someone has input. 
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#2
02-17-2021, 03:23 PM
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You'll get odd issues if your battery is dying and/or wasn't registered when replaced. Walmart sells the H8 AGM platinum for like $170 which is a steal and it has a 4 year replacement warranty. Stop by any autoparts store and have them test it. If the battery tests good then put it on a solid charger and charge it up until it's 100%, then do a battery register and you may fix your issues. Careful if you swap the battery though, as that for some reason can fry the FRM. Negative cable off, tuck it out of the way, then take the positive sides off. Reverse order when putting it back in. Pray for the best.
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#3
02-18-2021, 05:31 PM
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The flash on the FRM gets corrupted. The company is simply bench flashing it. Unless you change the hardware, the FRM is still susceptible to getting a corrupted flash again
__________________
 | '17 F15 X5 35D - Work horse | '17 F48 X1 MSport Daughter's daily | '22 Tesla MY LR Wife's Daily | '09 E70 X5 35D - Out to pasture |
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#4
02-19-2021, 01:25 AM
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I have a feeling it’s the FRM in conjunction with A bad battery. I noticed when I read codes in INPA that there’s a code for a fault on the drivers side, sidemarker. When I start the code the side marker flashes on and off on its own.. I can’t imagine why. I noticed it’s also led but appears very oem..last owner may have changed it.
I also have an annoying warning for the seat calibration sand have tried everything for it to go away with no such luck.
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#5
06-12-2021, 10:23 AM
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A friend of mine went through this with his FRM. Right headlight was out and code showed bad FRM. We took it to the dealer, they said a new FRM was $600? and since they had to be coded to his X5, they could not be held responsible if it didn't work, as the part is not returnable after it's been coded to a car.
They were able to get the light on using their shop software, but couldn't get it to operate once is was off their computer. I suspect user error. So he found some YouTube video that showed how to correct it with INPA. Wish I had more information for you, but he can't find the video now.
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#6
06-14-2021, 11:10 AM
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Quote:
Ended up with a 2020 E Class. Take care!
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