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Limit to how many times car can be coded
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05-16-2012, 08:55 PM | #1 |
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Limit to how many times car can be coded
Was speaking with an ind tech today and we were talking about coding. He mentioned the car can only be coded a certain number of times (15 or so) before modules are damaged. Any thoughts?
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05-16-2012, 09:02 PM | #3 |
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maybe he was thinking re-programming?
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05-16-2012, 09:09 PM | #4 |
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Maybe... But he was still wrong. Im doing coding and update firmware on modules for two years as i mention before, some cars have major problems and was updated many times in this years ( my clients usually stays with me) and they have their car update many time ( as many as daten files versions were out from this time) again not a single problem.
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05-16-2012, 10:44 PM | #6 |
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WinKFP and/or Progman will give you a warning something like: "Programming Module xxx. Module can be programmed xx more times". However, I've seen the exact same number upon multiple programmings (I had to program my ABS several times because I fat-fingered the VIN [and the ABS takes the full VIN, not just the last 7] and it read the same every time). I'm not sure if it is a bug or some internal "health" measurement of the ECU, or what, but it seems that the message is BS.
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05-16-2012, 11:19 PM | #7 | |
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Quote:
It always shows me that the module can be coded 1 more time..but I see that message all the time when coding the module again. Is it true that the dme can be flashed 30-50 times? Flash meaning "vin flashed". I don't think tuning the dme counts as a cycle as you arent writing the vin number again. I heard that writing a vin results in a recorded flash number. Confirmation? |
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05-18-2012, 10:20 AM | #9 |
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Flash memory in general has a maximum number of flash reprogramming events it is designed to handle. However for consumers it's a non-issue. For folks like me who design automotive ECU hardware we re-flash lots of times for a given vehicle program, and we still don't come close to that limit (lmits vary by flash technology and supplier).
Bottom line, I don't think you have anything to worry about. Now, if BMW puts in their code to limit reflashing, that's a different issue and they've decided to insert that limit.
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