LostWoods
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That's black box coding. The triggers for the lockers can be emulated because the signals themselves can be monitored, recorded, and reproduced on the CAN bus. CAN unfortunately isn't a simple protocol in that regard and the trigger to lock both is in all likelihood a single trigger signal.At the end of the day, it's all in coding.
There is a way around it.
Question is, is someone willing to spend the time and figure it out.
I'm pretty sure someone could figure out what wires to disconnect and what resistor to put in place in order to bypass the programming if someone wanted to be crude about it.
That means the trigger signal to lock just the front is at best a signal you'd have to find through guess and check (which might also do other bad things in the process) and at worst, nonexistent in the system. So worst case, that means aside from unlocking and reprogramming the module, there's no way to make it happen.
So you are right, it is just code and if someone had access to the code, it would be trivial to provide a signal on the front locker pin but that's just unfortunately not the case in practice.
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