LCM Programming

[lkv0315]

I'm not sure if anyone knows where to find this info or where to look other than here, so here I am. I am working on a custom project to give the E53 Sequential turn signals and side markers, along with a lock/unlock sequence. Is there a way to set the voltage that the LCM outputs for certain actions, or is it always 12v? I'm planning to use a microcontroller which I will have to supply with switched 12v anyway, so I was hoping to set it up to detect different actions from the LCM, like if the lights are just on versus turn signal on versus lock/unlock blink. If you guys also happen to know an easier way to do this and I'm just making it too complicated that advice would be appreciated too! Thanks for any tips you can provide!