I have a question regarding the location of the door lock switch..

I looked at the Chilton's manual..I know they're not very helpful..and I have a schematic for the power door lock assembly. I see the lock actuator and the inner remote assembly..but I can't find the "switch"

A friend needs a switch and I have an extra door but can't figure out the jargon..

Can anyone clear this up for me??

Thanks!

i don't think the early legos had a separate lock switch. up through 95 (96?) the driver door lock tab activated all of the doors. unlocking with a key unlocked all the doors.

Thanks!