![]() without going the long route of notifying the central computer and then waiting for the SAM to download the correct software via STAR and enable the retrofitted feature. Offline coding is akin to 'hacking' in that you make changes to the software on the ECUs directly, i.e. Older cars had more systems that didn't need enabling in this way, but as the cars get newer, retrofitting options without SCN coding becomes progressively more rare, and with new cars, almost everything that is connected to the car's electrical system will require SCN coding, including 'petty' stuff such as kerb lights - the SAM will simply not instruct the door controller module to power the relevant connector if it doesn't know that kerb lights have been retrofitted. I.e., updating the Datacard isn't just for show, it is actually the official way to activate retrofitted options on the car - STAR will check the MB database to see which options the car should have, based on it's VIN, and will update the SAM accordingly. The way SCN coding works, is that the car is connected online to the MB central computer via STAR, and once the Datacard has been updated, STAR will then download to the front and rear SAM the firmware for the options as listed in the Datacard, which in effect 'enables' the retrofitted option on the SAM (and on the car). ![]()
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