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).
- to BCM terminal 42
- through 10 A fuse [No. 18, located in the fuse block (J/B)].
- to key switch terminal 2
- through 10 A fuse [No. 21, located in the fuse block (J/B)].

Ground is supplied at all times
- to BCM terminal 52
- through grounds M30 and M66.

When key switch is ON (key is inserted in ignition key cylinder), power is supplied
- to BCM terminal 37
- through key switch terminal 1.

When the driver side door switch is ON (door is OPEN), ground is supplied
- to BCM terminal 62
- through driver side door switch terminal 1
- through driver side door switch case ground.

When the passenger side door switch is ON (door is OPEN), ground is supplied
- to BCM terminal 12
- through passenger side door switch terminal 1
- through passenger side door switch case ground.

When the door is locked or unlocked with power window main switch (door lock and unlock switch), ground is supplied
- to CPU of power window main switch
- through power window main switch (door lock and unlock switch) terminal 15
- through grounds M30 and M66.

Then power window main switch (door lock and unlock switch) operation signal is supplied
- to BCM terminal 22
- through power window main switch (door lock and unlock switch) terminal 12.

When the door is locked or unlocked with power window sub-switch (door lock and unlock switch), ground is supplied
- to CPU of power window sub-switch
- through power window sub-switch (door lock and unlock switch) terminal 11
- through grounds M30 and M66.

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

When the door is locked with door key cylinder switch, ground is supplied
- to power window main switch (door lock and unlock switch) terminal 6
- through door key cylinder switch terminals 1 and 5
- through grounds M30 and M66.

Then door key cylinder switch operation signal is supplied
- to BCM terminal 22
- through power window main switch (door lock and unlock switch) terminal 12.

When the door is unlocked with door key cylinder switch, ground is supplied
- to power window main switch (door lock and unlock switch) terminal 7
- through door key cylinder switch terminals 5 and 6
- through grounds M30 and M66.

Then door key cylinder switch operation signal is supplied
- to BCM terminal 22
- through power window main switch (door lock and unlock switch) terminal 12.

POWER WINDOW SERIAL LINK
BCM is connected to power window main switch (door lock and unlock switch) and power window sub-switch (door lock and unlock switch) as serial link.

Power window main switch, power window sub-switch and BCM transmit and receive the signal by power window serial link.

The under mentioned signal is transmitted from power window main switch to BCM.
- Door lock and unlock switch signal.

The under mentioned signal is transmitted from power window sub-switch to BCM.
- Door lock and unlock switch signal.

OUTLINE

Functions Available by Operating the Door Lock and Unlock Switches on Driver's Door and Passenger's Door
- With the locking operation of door lock and unlock switch, driver side door lock actuator, passenger side door lock actuator and fuel lid lock actuator are locked.
- With the unlocking operation of door lock and unlock switch, driver side door lock actuator, passenger side door lock actuator and fuel lid lock actuator are unlocked.

Functions Available by Operating the Key Cylinder Switch
- With the locking operation of door key cylinder, driver side door lock actuator and fuel lid lock actuator are locked.
- When door key cylinder is unlocked, driver side door lock actuator and fuel lid lock actuator are unlocked.
- When door key cylinder is unlocked for the second time within 5 seconds after the first operation, passenger side door lock actuator is unlocked.

Unlock mode can be changed using "DOOR LOCK-UNLOCK SET" in "WORK SUPPORT". Refer to "WORK SUPPORT".

Key Reminder Door System
When door lock and unlock switch is operated to lock doors with ignition key put in key cylinder and driver's or passenger's door open, driver and passenger door lock actuators are locked and then unlocked.

Key reminder door mode can be changed using "ANTI-LOCK OUT SET" in "WORK SUPPORT".

Refer to "WORK SUPPORT".

CAN Communication System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit
Refer to "INFORMATION BUS".