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Author Topic: ECU identifiers  (Read 2332 times)
HexTrain
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« on: August 19, 2019, 07:53:48 AM »

While browsing the ECU files sites, I saw 3 different identifiers of a file:
ECU number (For example EDC15C2, IAW5AF)
HW (hardware) number (For example 0281012982, 5G0906259P)
SW (software) number (For example 1039S45097)

Could anyone tell me what is the difference between those identifiers? And what do they actually mean?
Could the same ECU have different HW/SW numbers?
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nyet
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« Reply #1 on: August 19, 2019, 09:06:40 AM »

There is a large variety of changes to all depending on the ECU
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HexTrain
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« Reply #2 on: August 19, 2019, 09:31:20 AM »

There is a large variety of changes to all depending on the ECU

But what does every one of them mean?
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nyet
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« Reply #3 on: August 19, 2019, 09:34:45 AM »

Incremental changes. They usually all change when a new version is released. Sometimes the P/N does not change but the others do.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
Toxemia
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« Reply #4 on: August 20, 2019, 06:59:14 AM »

The identifiers you are asking con be broken down to

ECU number = The electronic control unit model
HW (hardware) number (For example 0281012982) is in your example the bosch hardware number
P/N (oem) number (For example 5G0906259P) is the oem part number for replacement
SW (software) number (For example 1039S45097) is in your example the bosch software number

Beware that using only these identifiers does not give you a 100% match with your BIN file! There are other numbers & alfanumeric texts in the file that are more specific... for example BMW EDC16/17 you can search for the alfanumeric text that starts with O_ (length varies sometimes 8 digita sometimes 21) and also for the numerical 11 digit number that starts with 37

and the list continues every manufacturer has it's own way of identifing the ecu.
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