does anyone know if the gm dealer can unlock or reflash a stock tune onto a locked lb7 ecm?
locked ecm
does anyone know if the gm dealer can unlock or reflash a stock tune onto a locked lb7 ecm?
Doubtful, if EFILive cant force a stock tune in using the "Use Alternate Keys" option, then a dealer who can only use the regular keys is at a disadvantage over an EFILive user. Either have the original tuner unlock it, give you the key, or pull the flash chip and bench flash it back to stock.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
how does the alternate keys option work? does the origional tuner have to use this option to make it work or can I? to unlock this ecm at all does the origional v2 that locked it have to do it or can i do it with mine. i think someone told me the v2 that locks it, has to be the one to unlock it. but i dont know.
Last edited by SGFastMax; May 11th, 2010 at 09:22 PM.
You just need to know what seed/key the tuner used when they flashed your truck. If the tuner will give you that information then you can enter it into your flash window and unlock it.
The Use alternate keys doesnt relate to locking really, its an option that tries all the keys EFILive knows that particular ECM/PCM used. Usually its for when a weird ECM comes along and still has a beta calibration or something like that. Cant hurt to try it though.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
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