WHAT DOES MERCEDES IGNITION SWITCH MEAN?

Unlocking and locking automobile functions. All other electrics never function. Batterie is Alright, fuses will also be Okay. Do you think that it may be the ESL or the EIS. When the very little motor within the ESL device is broken and I place in a completely new motor do just one really need to reprogram ? I observed your online video and underst