NOT KNOWN FACTUAL STATEMENTS ABOUT MERCEDES KEYS

Unlocking and locking vehicle functions. All other electrics never perform. Batterie is Okay, fuses are ok. Do you're thinking that it may be the ESL or the EIS. When the tiny motor in the ESL device is broken and I put in a new motor do 1 have to reprogram ? I saw your online video and know how to consider out the ESL. Followup through the Pelican