Power Locks: Description and Operation

POWER DOOR LOCK SYSTEM

System Description
Power is supplied at all times
- to BCM terminal 55
- through 50 A fusible link (letter f, located in the fuse and fusible link box)
- through 10 A fuse [No. 21, located in the fuse block (J/B)]
- to key switch and key lock solenoid terminal 3
- to BCM terminal 42.

With ignition key inserted, power is supplied
- through key switch and key lock solenoid terminal 4
- to BCM terminal 37.

Ground is supplied to terminal 52 of BCM through body grounds M57, M61 and M79.

When the door is locked or unlocked with main power window and door lock/unlock switch, ground is supplied
- to CPU of main power window and door lock/unlock switch
- through main power window and door lock/unlock switch terminal 17
- through grounds M57, M61 and M79.

Then main power window and door lock/unlock switch operation signal is supplied
- to BCM terminal 22
- through main power window and door lock/unlock switch terminal 14.

When the door is locked or unlocked with power window and door lock/unlock switch RH, ground is supplied
- to CPU of power window and door lock/unlock switch RH
- through front power window switch RH terminal 11
- through grounds M57, M61 and M79.

Then power window and door /lock/unlock switch RH operation signal is supplied
- to BCM terminal 22
- through power window and door lock/unlock switch RH terminal 16.

When the door is locked with front door lock assembly LH (key cylinder switch), ground is supplied
- to main power window and door lock/unlock switch terminal 4
- through front door lock assembly LH (key cylinder switch) terminals 1 and 5
- through grounds M57, M61 and M79.

Then front door lock assembly LH (key cylinder switch) operation signal is supplied
- to BCM terminal 22
- through main power window and door lock/unlock switch terminal 14.

When the door is unlocked with front door lock assembly LH (key cylinder switch), ground is supplied
- to main power window and door lock/unlock switch terminal 6
- through front door lock assembly LH (key cylinder switch) terminals 6 and 5
- through grounds M57, M61 and M79.

Then front door lock assembly LH (key cylinder switch) operation signal is supplied
- to BCM terminal 22
- through main power window and door lock/unlock switch terminal 14.

BCM is connected to main power window and door lock/unlock switch and front power window switch RH through a serial link.

When the front door switch LH is ON (door is open), ground is supplied
- to BCM terminal 62
- through front door switch LH terminal 2
- through front door switch LH case ground.

When the front door switch RH is ON (door is open), ground is supplied
- to BCM terminal 12
- through front door switch RH terminal 2
- through front door switch RH case ground.

When the rear door switch LH is ON (door is open), ground is supplied
- to BCM terminal 63
- through rear door switch LH terminal 1
- through rear door switch LH case ground.

When the rear door switch RH is ON (door is open), ground is supplied
- to BCM terminal 13
- through rear door switch RH terminal 1
- through rear door switch RH case ground.

OUTLINE

Functions available by operating the door lock and unlock switches on driver's door and passenger's door
- Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors are locked.
- Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors are unlocked.

Functions available by operating the front door lock assembly LH (key cylinder switch)
- Interlocked with the locking operation of front door lock assembly LH (key cylinder switch), door lock actuators of all doors are locked.
- When front door lock assembly LH (key cylinder switch) is unlocked, front door lock actuator LH is unlocked.
- When front door lock assembly LH (key cylinder switch) is unlocked for the second time within 5 seconds after the first operation, door lock actuators on all doors are unlocked.

Key reminder door system
When door lock and unlock switch is operated to lock doors with ignition key put in key cylinder and any door open, all door lock actuators are locked and then unlocked.