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i dont believe byte 18 will help...
Just taking a shot here, but I would say no. The module was used up until a build date of November 2010 so it's pre facelift. There are so many different versions of CECMs for your model and year of vehicle, each one with the same part number but different version of software in it depending on the features of the vehicle. I can see why xenon retrofits are a nightmare.