System Description

SYSTEM DIAGRAM

Door lock function controls operation function of the following items.

Door lock and unlock function (door request switch)
Selective unlock function (door request switch)
Reminder function (door request switch)
Auto door lock function (door request switch)

DOOR LOCK AND UNLOCK FUNCTION (DOOR REQUEST SWITCH)

When pressing the door request switch, it is possible to lock and unlock the door by carrying the Keyless operation key.

Operation Description

When the Keyless operation key unit detects that each door request switch is pressed, it starts the outside key antenna and inside key antenna corresponding to the pressed door request switch and transmits the request signal to the Keyless operation key. And then, check that the Keyless operation key is near the door.
If the Keyless operation key is within the outside key antenna detection area, it receives the request signal and transmits the key ID signal to the Keyless operation key unit via remote keyless entry receiver.
Keyless operation key unit receives the key ID signal and compares it with the registered key ID to the vehicle.
If the verification result is OK, Keyless operation key unit transmits the door lock/unlock request signal to BCM via CAN communication.
BCM transmits door lock/unlock request signal to each door lock actuator, activates each door lock actuator when receiving door lock/unlock request signal from Intelligent unit.

Operation Condition

If the following conditions are satisfied, door lock and unlock operation is performed if the door request switch is operated.

Each door request switch operation	Operation condition
Lock	Keyless operation key is outside the vehicle P position warning is not activated Selective unlock function is not activated Keyless operation key is within outside key antenna detection area* All doors closed
Unlock	Keyless operation key is outside the vehicle Keyless operation key is within outside key antenna detection area *

*: Even with a registered Keyless operation key remaining inside the vehicle, door lock or unlock can be operated from outside of the vehicle with a spare Keyless operation key as long as key IDs are different.

SELECTIVE UNLOCK FUNCTION (DOOR REQUEST SWITCH)

Lock Operation

When lock signal is sent from door request switch, all doors are locked.

Unlock Operation

When unlock signal from front door request switch LH is transmitted, front door LH unlocks. When front door request switch LH is operated again within 2 seconds, all door unlock.
When unlock signal from front door request switch RH is transmitted, front door RH unlock. When front door request switch RH is operated again within 2 seconds, all doors unlocks.
When unlock signal from rear door request switch RH is transmitted, rear door RH unlock. When rear door request switch RH is operated again within 2 seconds, all doors unlocks.
When unlock signal from rear door request switch LH is transmitted, rear door LH unlock. When rear door request switch LH is operated again within 2 seconds, all doors unlocks.
When unlock signal from power liftgate request switch is transmitted, power liftgate unlock. When power liftgate request switch is operated again within 2 seconds, all doors unlocks.

REMINDER FUNCTION (DOOR REQUEST SWITCH)

When doors are locked or unlocked by door request switch, BCM blinks hazard warning lamps as a reminder or Keyless operation key warning buzzer signal to Keyless operation key unit via CAN communication. Reminder function does not operate if ignition switch in ON position. The reminder function has C mode and S mode.

Operation	C mode		S mode
Door request switch	Lock	Unlock	Lock	Unlock
Hazard warning light	Once	Twice	Twice	–
Keyless operation key warning buzzer	Once*	Twice	–	–

*: Work support mode [ANSWER BACK] setting is "On"

How to Change Reminder Function Operation Mode

Reminder function operation mode can be changed using combination meter setting.
When lock and unlock signal are sent from the Keyless operation key for more than 4 seconds at the same time, the hazard and buzzer reminder mode is changed and hazard warning light blinks and horn sounds as per the following items:

AUTO DOOR LOCK FUNCTION (DOOR REQUEST SWITCH)

After door is unlocked by door request switch operation and if 30 seconds or more passes without performing the following operation, all doors are automatically locked. However, operation check function does not activate.

Operating condition

Door switch is ON (each door is open)
Keyless operation key unit receives door lock signal
Push switch is pressed

OUTSIDE KEY ANTENNA DETECTION AREA

The outside key antenna detection area of door lock/unlock function is in the range of approximately 0.7 m (27.56 in) surrounding the door request switch (front door and rear door)

and power liftgate request switch

. However, this operating range depends on the ambient conditions.

LIST OF OPERATION RELATED PARTS

Parts marked with × are the parts related to operation.

Function	Keyless operation key	Keyless operation key unit	Door switch	Door request switch	Door lock actuator	Inside key antenna	Outside key antenna	Keyless operation key warning buzzer	CAN communication system	BCM	Hazard warning light	Push-button ignition switch	Combination meter
Door lock and unlock function (door request switch)	×	×	×	×	×	×	×			×
Selective unlock function (door request switch)	×	×	×	×	×	×	×			×
Reminder function (door request switch)								×	×	×	×		×
Auto door lock function (door request switch)	×		×	×	×					×		×