View Full Version : What is the OS ID?
Sniffles20
April 5th, 2017, 04:29 PM
What exactly does the OS ID mean? I know it's defined as "A two-letter code that further identifies the operating system." Does that mean it is what dictates what OS's can be flashed onto an ECM? For example; the OS ID of an ECM is "AM." Does that mean any OS that shares that OS ID can be flashed onto the ECM?
joecar
April 6th, 2017, 04:34 AM
The OS id is usually an 8 digit code, for example 12202088 or 12212156.
Post the file you have, let me have a look.
Sniffles20
April 6th, 2017, 02:53 PM
Here is the tune. Is says the OS is 12592618 and the OS ID is AM.
joecar
April 7th, 2017, 07:17 AM
Ah, I see.
That field does not determine what OS can be flashed.
Usually, OS's that come from a like PCM can be interchanged.
Your ECM looks like it's an E40... I'm not sure if all the E40 OS's are interchangeable, I imagine they are since E40 was only a short run of 2-3 years.
Sniffles20
April 7th, 2017, 03:34 PM
It is a ls1B ecm. I know I bricked a different ls1B by flashing that tune onto it so I have been trying to figure out what Os's were compatible with what ECMs so I don't waste another licence.
joecar
April 8th, 2017, 10:05 AM
That tune runs on the E40 ECM, so you should not flash it to any of tbe LS1B PCMs.
~ by phone ~
joecar
April 8th, 2017, 10:07 AM
The LS1B PCMs are divided by 512K, 768K, 1M...
which PCM do you have and drom which year/model/vehicle...?
~ by phone ~
Sniffles20
April 10th, 2017, 04:40 AM
The vehicle is a 05 Cadillac CTS V. I have it running fine now with that tune on a stock ls1b ecm with hardware #12586243. I don't have the hardware/service numbers on hand for the bricked ecm but looks to be a 1MB as well. What other factors do you have to watch for to prevent bricking an ecm?
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