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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 09-06-2013, 12:41 PM
bblackmond bblackmond is online now
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GM3 module

Anyone ever needed and had their original GM3 module recoded?
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  #2  
Old 09-06-2013, 01:20 PM
edjack edjack is online now
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Never heard of it. Why do you think you need it?
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  #3  
Old 09-06-2013, 01:44 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by bblackmond View Post
Anyone ever needed and had their original GM3 module recoded?
Typing /GM3 F3 in the bestlinks netted this site, which is a guy who fixes them for you:
- How to find the General Module under the glovebox and how to remove the GMIII General Module 3 and how to repair the GM 3 and how the GM3 affects door locks from the key fob and central locking button (1)

You might want to ask him (Scott).
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  #4  
Old 09-06-2013, 02:19 PM
HTK12 HTK12 is offline
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Well, if you want to change some setting in the GM3, you need to recode it. So plenty of people have, why are you asking?
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  #5  
Old 09-07-2013, 08:27 AM
rdl rdl is online now
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Not a full re-code, but I did change one code parameter to enable the key remote to close the windows and sunroof.

Why do you ask? What do you want to do?
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  #6  
Old 09-09-2013, 05:06 AM
bblackmond bblackmond is online now
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Last year my interior maps lights, glove box light, trunk lights, warning chimes, seat memory and auto steering wheel up when exiting stop working. After searching this site and others I thought it was the GM3 module. I sent the module to Scott and he couldnít find anything wrong with. I put the module back in the car and the same things were not working. I get in the car about an hour later and everything is working. Everything continued to work for a few days and then those same issues resurfaced. For the next several months those same issues would come and go at random. About three months ago they stop working and had not worked at all until last night. I open the trunk to get something out and the lights came on! I couldnít believe it. I check the other lights, seat memory, warning chimes everything was working and I check this morning and everything is still working. Thatís why I thought I may need the module recoded but obviously I donít. Any idea what could be causing this?
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  #7  
Old 09-09-2013, 06:08 AM
rdl rdl is online now
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Not all of the inop functions are controlled by the GM/ZKE. For instance, lights are operated by the LCM. Since you have "recovered" these items when opening the trunk, perhaps the car has some broken wiring in the trunk harness, which is a known problem with a range of seemingly unrelated symptoms.

Search Best Links for description, symptoms and repair methods.
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  #8  
Old 09-09-2013, 10:17 AM
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bluebee bluebee is offline
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If it's the trunk wiring loom, typing /loom F3 will net this, among others:
- How to repair your frayed trunk wiring loom (1)
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See also: E39 Bestlinks & How to easily find what you need, in seconds!
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  #9  
Old 09-09-2013, 11:48 AM
bblackmond bblackmond is online now
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Smile

I've already check that wiring. I did have a couple of wires with cuts but I repaired them. I appreciate the information.
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