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BMW 3-Series (E90 E92) Forum
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Direct FRM swap FRM2 -> FRM2 coding help
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01-02-2017, 01:38 PM | #1 |
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Direct FRM swap FRM2 -> FRM2 coding help
I tried searching the forum and saw mostly directions from upgrading a FRM2 to 3. I have a short in my FRM2 so will just be replacing it with another FRM2. What sort of coding will I have to do?
Anyone able to point me in the right direction to reset the replacement and whatever else I need to do? (VIN, etc) |
01-02-2017, 02:24 PM | #2 |
BimECU
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1) you will need to change VIN number, you can use Tool32 for it
2) you will need to copy FA from CAS to new FRM - you can use NCSExpert for it 3) you will need to code new FRM according to FA - NCSExpert again |
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01-02-2017, 02:40 PM | #3 |
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Great thanks. I'm confused on step 3 though, if I'm copying the FA (that's the VO right?) from the CAS to the new FRM, why do I need to now code the FRM?
Sorry if that seems like a dumb question, I haven't used NCSExpert in 2 years so I'm really rusty. Will the FA from the CAS contain any of my edits to the old FRM or will I just need to edit those in the new one? |
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01-02-2017, 10:15 PM | #4 | |
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Quote:
Each module in the car may behave differently depending on different options in the FA/VO. The FA/VO is stored in CAS and FRM just so it's stored twice for a backup. If you install a used module, in your case a used FRM2 (NFRM) it will be coded for someone else's FA/VO so may act strangely in your car. Simply copying your FA/VO from your CAS to the new FRM will not code the FRM to your car. All you have done is place a backup of your FA/VO in the FRM (which is quite right). Like any other module, when retrofitted it needs to be coded to your FA/VO as stated using an expertmode profile (no manipulation) and the job sg_coderien. |
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