SCT ECM Unlock Failure

[labontecsi]

I have the stock tune in and every time I try to flash it with my SCT I get ECM Unlock Failure. Disconnected negative battery cable, was able to check DTCs. Still unable to flash.
Ever seen this? Any fix?

Thanks.

 

[TNVIPER]

I had this problem..it was caused by the wrong SCT serial number...this number is located on the tuner. Contact whoever did your tune. They can email you another file with the correct #.

 

[labontecsi]

I've flashed it several times before and it worked fine, this is a new hiccup. Is it possible that the stored info in the SCT has been corrupted somehow?

 

[TNVIPER]

If you have used the tune before then I would say yes, something has hiccupped...contact the vendor you bought the tune from....if no help there contact SCT...they have a support # on their web site...