Power Locks: Description and Operation

Power is supplied at all times:
^ through 25 A fusible link (letter (f) located in the fusible link and fuse box)
^ to circuit breaker terminal (1)
^ through circuit breaker terminal (2)
^ to smart entrance control unit terminal (1).
Ground is supplied to smart entrance control unit terminal (10) through body grounds (M43), (M44) and (M60)

INPUT
When the door lock & unlock switch LH is in LOCK position, ground signal is supplied:
^ to smart entrance control unit terminal (18)
^ through door lock & unlock switch LH terminal (7)
^ to door lock & unlock switch LH terminal (5)
^ through body grounds (M43), (M44) and (M60).
When the door lock & unlock switch RH is in LOCK position, ground signal is supplied:
^ to smart entrance control unit terminal (18)
^ through door lock & unlock switch RH terminal (1)
^ to door lock & unlock switch RH terminal (2)
^ through body grounds (M43), (M44) and (M60).
when the door lock & unlock switch LH is in UNLOCK position, ground signal is supplied:
^ to smart entrance control unit terminal (19)
^ through door lock & unlock switch LH terminal (8)
^ to door lock & unlock switch LH terminal (5)
^ through body grounds (M43), (M44) and (M60).
When the door lock & unlock switch RH is in UNLOCK position, ground signal is supplied:
^ to smart entrance control unit terminal (19)
^ through door lock & unlock switch RH terminal (3)
^ to door lock & unlock switch RH terminal (2)
^ through body grounds (M43), (M44) and (M60).

OUTPUT
Unlock
Power is supplied:
^ from smart entrance control unit terminal (3)
^ to front door lock actuator LH terminal (1)
^ from smart entrance control unit terminal (2)
^ to all other door lock actuators terminal (1).
Ground is supplied:
^ from smart entrance control unit terminal (4),
^ to all door lock actuators terminal (3).
With power and ground supplied, the door lock actuators move to the unlocked position.

Lock
Power is supplied:
^ from smart entrance control unit terminal (4)
^ to all door lock actuators terminal (3).
Ground is supplied:
^ from smart entrance control unit terminal (3)
^ to front door lock actuator LH terminal (1)
^ from smart entrance control unit terminal (2).
^ to all other door lock actuators terminal (1).
With power and ground supplied, the door lock actuators move to the locked position.