ENTRY AND START SYSTEM

FUNCTION OF MAIN COMPONENTS

The main components of the start function have the following functions:

Component	Function
Engine Switch Transponder Key Amplifier	Transmits the engine switch signal to the power management control ECU. Informs the driver of a power source mode or system abnormality by illuminating the indicator light. Receives the ID code and transmits it to the certification ECU when the key battery is low.
Key	Receives signals from the antennas and returns the ID code to the door control receiver. When receiving the radio wave that is output by the transponder key amplifier in the engine switch, the key outputs information such as the key ID and vehicle ID.
Indoor Electrical Key Antenna	Receives the request signal from the certification ECU, and forms an actuation area inside the interior of the vehicle.
Door Control Receiver	Receives the ID code from the key and transmits it to the certification ECU.
Power Management Control ECU	Turns the power source to off, on (ACC), on (IG), or START in accordance with the shift lever position and the state of the stop light switch assembly, Controls the start function in accordance with the signals received from the switches and each ECU.
Certification ECU	Certifies the ID code received from the door control receiver and transmits the certification results to the ID code box and steering lock ECU. Transmits steering lock/unlock request signals. Transmits engine immobiliser set/unset request signals. Records the ID codes between the certification ECU, ID code box, and steering lock ECU.
Stop Light Switch Assembly	Outputs the state of the brake pedal to the power management control ECU.
ID Code Box	Receives the steering unlock or engine immobiliser unset request signal from the certification ECU, certifies it, and transmits each unset signal to the steering lock ECU or ECM.
ECM	Receives the engine start request signal from the power management control ECU, turns on the starter relay assembly, and starts the engine. Receives the signal from the ID code box and performs engine ignition and injection.

The main components of the entry function have the following functions:

Component		Function
Key		When receiving the request signals that are output by the indoor electrical key antennas, door electrical key antennas, and outside luggage compartment electrical key antenna, the key outputs information such as the key ID and vehicle ID. When a driver pushes the lock, unlock button or glass hatch opener button on the key, the key outputs a request signal. Integrates with the mechanical key in order to unlock the doors when the key battery is low.
Certification ECU		Judges and certifies the key. Controls the indoor electrical key antennas, door electrical key antennas, outside luggage compartment electrical key antenna. Transmits door lock/unlock request signals during the entry function. Receives a glass hatch opener switch operation signal from the body ECU, checks that the key is in the exterior actuation area around the back door, and sends a glass hatch open signal to the main body ECU when the key identification is confirmed.
Main Body ECU		Receives the request signal from the certification ECU and actuates the door lock motors to unlock or lock all the doors, and the back door. Receives a glass hatch opener switch operation signal, and sends it to the certification ECU. When the certification ECU has confirmed the key identification, the main body ECU receives a glass hatch open signal from the certification ECU and drives the glass hatch opener motor. Transmits the condition of each door and glass hatch to the certification ECU.
ID Code Box		Receives the steering unlock or engine immobiliser unset request signal from the certification ECU, certifies it, and transmits each unset signal to the steering lock ECU or ECM.
Outside Door Handle Assembly	Touch Sensor	Transmits the door unlock request signal to the certification ECU.
	Lock Sensor	Transmits the door lock request signal to the certification ECU.
	Door Electrical Key Antenna	Receives the request signal from the certification ECU, and forms an actuation area around the driver's and front passenger's doors.
Indoor Electrical Key Antenna		Receives the request signal from the certification ECU, and forms an actuation area inside the interior of the vehicle.
Outside Luggage Compartment Electrical Key Antenna		Receives the request signal from the certification ECU, and forms an actuation area around the luggage compartment.
Door Control Receiver		Receives the ID code from the key in the actuation area and transmits it to the certification ECU.
Back Door	Unlock Switch	Transmits the door unlock request signal to the certification ECU.
Back Door	Lock Switch	Transmits the door lock request signal to the certification ECU.
Glass Hatch Opener Switch		Transmits the glass hatch opener switch operation signal to the main body ECU.
Wireless Door Lock Buzzer		Sounds as an answerback for entry lock or unlock to inform the driver.*
Combination Meter Assembly	Multi-information Display	When the certification ECU detects human errors, it warns the driver by sounding the wireless door lock buzzer, illuminating the master warning light, displaying the multi-information display, and sounding the multi buzzer in the combination meter assembly in accordance with the request signal from the ECU.
	Multi Buzzer
	Master Warning Light

*: Models for G.C.C. countries

SYSTEM CONTROL

Operating Condition

The special functions of the entry and start system only work when the key is in the actuation area formed by the 6 antennas.
The No. 1, No. 2 and No. 3 indoor electrical key antenna assemblies form the actuation area of the start function.

The door electrical key antenna assemblies and the outside luggage compartment electrical key antenna form the actuation area of the entry function.

*1	No. 1 Indoor Electrical Key Antenna Assembly	*2	Door Electrical Key Antenna LH
*3	Door Electrical Key Antenna RH	*4	No. 2 Indoor Electrical Key Antenna Assembly
*5	No. 3 Indoor Electrical Key Antenna Assembly	*6	Outside Luggage Compartment Electrical Key Antenna
*a	Approx. 0.7 m to 1.0 m (2.3 ft. to 3.3 ft.)	*b	Interior Actuation Area
*c	Exterior Actuation Area	-	-

Actuation Area	Details
Interior	The interior actuation area of the indoor electrical key antennas is formed when the driver door is closed when the brake pedal is depressed, when the engine switch is pressed, when a warning is activated, or when the lock sensor or lock switch is on.
Exterior	The exterior actuation area formed by the electrical key antennas and outside luggage compartment electrical key antenna is approx. 0.7 m to 1.0 m (27.6 in. to 39.4 in.) from the outside door handle of the front doors, or the outside luggage compartment electrical key antenna.
Around Front Door	The exterior actuation area of the electrical key antennas is formed by transmitting a request signal every 0.25 seconds while the engine switch is off and each door is locked. In this way the proximity of a key can be detected. When locking the door using the lock sensor on the outside door handle, the actuation area is formed when the lock sensor is touched.
Around Back Door	The exterior actuation area of the outside luggage compartment electrical key antenna is formed when the back door lock, unlock or glass hatch opener switch is on.

FUNCTION

Start Function
1. The start function has different power source modes to suit the brake pedal condition and shift lever position.
2. When a driver who is carrying a key enters the vehicle while the power source mode is off, and presses the engine switch without depressing the brake pedal, the power source mode turns on (ACC), causing the engine switch indicator light to illuminate amber. With each pressing of the engine switch, the power source mode switches as follows: off → on (ACC) → on (IG) → off.
3. When a driver who is carrying a key enters the vehicle while the power source mode is off, and depresses the brake pedal while the shift lever is in P or N, the engine switch indicator light will illuminate green. Pressing the engine switch with the indicator light illuminated green will cause the engine to start.
4. When starting the engine with the vehicle stopped, pressing the engine switch while the shift lever is in P will cause the power source mode to turn off. Pressing the engine switch when the shift lever is in any position other than P will cause the mode to turn on (ACC).
5. Transition of the power source mode when the key battery is low or the key is not operating normally due to an electromagnetic interference:
  1. The driver uses the mechanical key (which is built into the key) to unlock the door, and enters the vehicle while carrying the key.
  2. The driver places the LEXUS mark of the key in contact with the front of the engine switch while depressing the brake pedal.
  3. Within approximately 10 seconds after the buzzer sounds, the driver releases the brake pedal and presses the engine switch.
  4. With each pressing of the engine switch, the power source mode switches as follows: off → on (ACC) → on (IG) → off.
6. Starting the engine when the key battery is low or the key is not operating normally due to an electromagnetic interference:
  1. The driver uses the mechanical key (which is built into the key) to unlock the door, and enters the vehicle while carrying the key.
  2. The driver places the LEXUS mark of the key in contact with the front of the engine switch while depressing the brake pedal while the shift lever is in P or N.
  3. Within approximately 10 seconds after the buzzer sounds and the engine switch indicator light illuminates green, the driver presses the engine switch while depressing the brake pedal.
    Tech Tips
    
    Normally, the operation of the engine switch is disabled while the vehicle is being driven. However, if the engine must be stopped in an emergency while the vehicle is in motion, the driver can press the engine switch for approximately 3 seconds or more to stop the engine.
    
    If no signals are transmitted to the power management control ECU due to a malfunction in the stop light switch assembly, park/neutral position switch assembly, the engine will not start even if the driver presses the engine switch while depressing the brake pedal. In this case, the driver can start the engine by carrying out the following operations. Press the engine switch to turn the power source mode from off to on (ACC), and press the engine switch again and hold it for 15 seconds or more.
    
    The above two operations must be carried out only in emergency situations. Under normal conditions, the engine must not be stopped by pressing the engine switch during driving or started without depressing the brake pedal when the shift lever is in any position other than P or N.

Entry Function

The entry function consists of the following functions:

Function	Outline
Wireless Door Lock Control	This function is a convenient system for locking and unlocking all the doors at a distance.
Entry Illumination	When a key enters the exterior actuation area of the door electrical key antenna, each interior light and engine switch illumination light will illuminate.
Entry Unlock Mode Switching	Allows switching between 2 modes that can be operated with the entry unlock function. All Door Mode Driver Door Mode (Default Setting)
Entry Unlock	When a key is located in the exterior actuation area, the door will unlock after the either front outside door handle is gripped. The driver outside door handle unlocks the driver door. The front passenger outside door handle unlocks all doors.
Entry Lock	All doors are locked by touching the lock sensor of the driver or front passenger outside door handle or by pressing the lock switch of the back door.
Entry Glass Hatch Opener	The glass hatch is opened by pressing the glass hatch opener switch.
Prevention of Key Confinement	This function will operate in the following 3 different situations when the key is inside the cabin: when the lock knob is used (keyless lock), when an outside door handle lock sensor or lock switch is used (lock sensor), and when the glass hatch has been closed while the all doors are locked.
Key Cancel	The following key functions can be canceled by following certain procedures: Entry unlock/lock Back door open Prevention of key confinement Warning
Battery Saving	To prevent the key battery and the vehicle battery from becoming discharged, the battery saving function activates when the vehicle remains unused for a long period of time or the key has been detected in the exterior actuation area for more than 10 minutes.
Warning	The entry and start system causes the certification ECU to sound the multi buzzer in the combination meter assembly and wireless door lock buzzer, illuminate the master warning light and display the multi-information display in order to alert the driver.
Key Code Registration Function	A total of 7 keys can be registered. Key registration enables the registration (writing and storing) of transmitter recognition codes in the EEPROM that is contained in the certification ECU.

Wireless Door Lock Control Function

The wireless door lock control function has the following functions:

Function	Outline
All Doors Lock	Pressing the lock button of the key locks all doors and back door.
All Doors Unlock	Pressing the unlock button of the key unlocks all doors and back door.
All Doors Unlock (2-step Unlock)	Pressing the unlock button on the key once unlocks the driver door, and pressing it again within 3 seconds unlocks all the doors.
Glass Hatch Opener	Pressing and holding the glass hatch opener button opens the glass hatch.
Automatic Lock	If none of the doors are opened within 30 seconds after they have been unlocked by the wireless door lock control, all the doors will be locked again automatically. The starting time of the automatic lock function can be changed to 120, 60, or 30 seconds.
Answer Back	When the doors are being locked or unlocked using the key, the wireless door lock buzzer sounds1 and the hazard warning lights blink once while locking and twice while unlocking. When the glass hatch is being opened using the key, the wireless door lock buzzer sounds1 twice as an answer back.
Panic Alarm*1	Keeping the panic button on the key pressed for longer than 0.8 seconds causes the following alarm functions to be activated. Sounds the horn and security horn. Flashes the hazard lights, headlights, and taillights. Illuminates the interior lights (if the interior light switch is in the DOOR position).
Door Ajar Warning*2	If any door is open or ajar, pressing the lock button of the transmitter will cause the wireless door lock buzzer to sound for about 10 seconds.
Customization	Some functions can be customized. For details, refer to the corresponding Repair Manual for this model.

*1: Models for G.C.C. countries
*2: Except models for China

Entry Unlock Mode Switching
1. The entry unlock mode can be switched between the following 2 modes in accordance with the driver's intention:
  - All Door Mode
  - Driver Door Mode (Default Setting)
2. In all door mode, all doors are unlocked by touching the driver or front passenger touch sensor, or by pressing the unlock switch of the back door. In driver door mode, only the driver door is unlocked by touching the driver side touch sensor, and all doors are unlocked by touching the front passenger side touch sensor or by pressing the unlock switch of the back door.
3. The switching of the entry unlock mode is performed when the power source mode is off and the key indicator light is not illuminated. Within a distance range of 1 meter from the vehicle, press and hold both the lock and unlock buttons of the key for approximately 5 seconds.
4. During the switching of the entry unlock mode, the wireless door lock buzzer, multi-information display, or the multi buzzer combination meter assembly will sound to inform the driver of the state of the entry unlock mode.
Entry Unlock Function
1. When the key is in the actuation area surrounding the driver seat, gripping the driver side outside door handle will unlock the driver door only, and gripping the passenger side outside door handle or pressing the back door unlock switch will unlock all doors.*1
2. When the key is in any of the exterior actuation areas, all doors are unlocked by grabbing the driver or front passenger outside door handle or by pressing the unlock switch of the back door.*2
3. After all doors have been unlocked, the wireless door lock buzzer sounds twice*3 as an answer back and the hazard lights flash twice at the same time.
  - *1: Driver door mode
  - *2: All door mode
  - *3: Models for G.C.C. countries
    
    *1 Touch Sensor *2 Unlock Switch
Entry Lock Function
1. When the key is in any of the exterior actuation areas, all doors are locked by touching the lock sensor of the driver or front passenger outside door handle or by pressing the lock switch of the back door.
2. After all doors have been locked, the wireless door lock buzzer sounds once* as an answer back and the hazard lights flash once at the same time.
  - *: Models for G.C.C. countries
3. If the doors do not lock when the lock sensor on the topside of an outside door handle is touched, touch the lock sensors on the top and bottom sides simultaneously by pinching the handle.
  
  *1 Lock Sensor *2 Lock Switch
Entry Glass Hatch Opener Function
1. When the key is in the exterior actuation area around the back door, the glass hatch is opened by pressing the glass hatch opener switch.

Memory Call Function

The key linked memory call function uses the ID of a key to automatically restore the seat position (using the driving position memory system) and tilt and telescopic position, increasing driver convenience.

Condition	Outline
Memory Registration	When all the following conditions are met, the key ID will be recorded. The engine switch is on (IG). The memory switch (M1 or M2) button is pushed and held. The lock or unlock side of the driver door lock switch is pushed.
Memory Call Operation	The memory call function operates when the driver door is opened after the door is unlocked using the entry and start system or wireless door lock control function.
Memory Call Cancel	When all the following conditions are met, the memory call function can be disabled. The engine switch is on (IG). The driver door is closed. The SET button is pushed and held. The lock or unlock button on the key is pushed and held.

Condition

Outline

Memory Registration

When all the following conditions are met, the key ID will be recorded.

The engine switch is on (IG).
The memory switch (M1 or M2) button is pushed and held.
The lock or unlock side of the driver door lock switch is pushed.

Memory Call Operation

The memory call function operates when the driver door is opened after the door is unlocked using the entry and start system or wireless door lock control function.

Memory Call Cancel

When all the following conditions are met, the memory call function can be disabled.
The engine switch is on (IG).
The driver door is closed.
The SET button is pushed and held.
The lock or unlock button on the key is pushed and held.

The key linked memory call function uses the ID of a key to automatically restore the last settings used for the air conditioning system. The function is available for vehicles without the driving position memory system. For details, refer to the corresponding Repair Manual for this model.

Memory Registration

Step	System Operation
(a)	Carrying the key to be linked to the seat position memory system, close the door and turn the engine switch on (IG). Push the memory switch that is to be linked to the key.
(b)	While continuing to the memory switch, push the lock or unlock side of the driver door lock switch.
(c)	During key ID detection, the buzzer in the position control ECU and switch assembly sounds continuously.
(d)	The main body ECU registers the key ID and each position into memory.
(e)	When the main body ECU completes recording, it beeps the buzzer in the position control ECU assembly and switch assembly for 0.5 seconds as an answer back. If recording malfunctions, the main body ECU beeps the buzzer in the position control ECU assembly and switch assembly for 3 seconds as an answer back.

Warning Function

When any of the situations below occur, the entry and start system causes the certification ECU to sound a multi buzzer in the combination meter assembly and the wireless door lock buzzer* and illuminate the multi-information display in order to alert the driver.

Situation	Condition
A	The shift lever is in any position other than P and the power source mode is anything other than off.
B	The driver door is opened while the steering is unlocked.
C	The shift lever is in P and power source mode is anything other than off.
D	The occupant leaves with the key.
E	The engine switch is operated while the key is outside the actuation area.
F	The entry lock is operated while the key is inside the vehicle.
G	The entry lock is operated while any of the doors are open.*
H	A key is confined inside the vehicle interior.
I	The key battery is low.
J	The steering lock cannot be released.
K	A steering lock ECU malfunction has been detected.
L	A power management control ECU malfunction has been detected.
M	An engine start method is displayed.
N	The system assumes that the driver is unfamiliar with the proper way to start the engine.
O	An engine start method is displayed.
P	An attempt is made to turn off the vehicle with the shift lever in any position other than P or N.
Q	Automatic power off operation occurs.
R	The driver holds the key against the engine switch.
S	The vehicle is driven without the key.

*: Except models for China

There are two patterns for situation A.

When power source mode is anything other than off and the shift lever is in any position other than P, the driver opens the door and attempts to get out of the vehicle. In this situation, the following control is performed:

Possible Effects without Warning	Sudden vehicle start, vehicle theft, vehicle roll-away
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Power source mode is anything other than off. Shift lever is in any position other than P. Driver door is opened. Vehicle speed is 5 km/h (3 mph) or less.
Warning Method	Combination Meter Assembly	Multi Buzzer	Continuously sounds
		Multi-information Display	SHIFT TO P POSITION WHEN ALIGHTING
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. Shift lever is in P. Driver door is closed. Vehicle speed is above 5 km/h (3 mph).

Under the conditions of pattern 1, the driver closes the door and attempts to leave the vehicle while holding the key. In this situation, the following control is performed:

Possible Effects without Warning	Sudden vehicle start, vehicle theft, vehicle roll-away
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Power source mode is anything other than off. Shift lever is in any position other than P. The state of the driver door is changed from open to closed. There is no key in the cabin or in the luggage compartment. Vehicle speed is 0.
Warning Method	Combination Meter Assembly	Multi Buzzer	Continuously sounds
		Multi-information Display	Alternately shows "SHIFT TO P POSITION WHEN ALIGHTING" and "KEY NOT DETECTED".
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: There is a key in the cabin or in the luggage compartment. Multi buzzer and wireless door lock buzzer stop sounding. Multi-information display only shows "SHIFT TO P POSITION WHEN ALIGHTING". Vehicle speed is available or shift lever is P. Multi buzzer and wireless door lock buzzer stop sounding. Multi-information display only shows "KEY NOT DETECTED". Power source mode is off. All warnings stop.

*: Except models for China

In situation B

If the driver door is opened while the steering is unlocked, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Condition	The certification ECU gives a warning when one of the following conditions is met: The power source mode is on (ACC) and the driver's door is opened. The power source mode is off while the steering is unlocked and driver door is opened.
Warning Method	Combination Meter Assembly	Multi Buzzer	Intermittently sounds
		Multi-information Display	-
		Master Warning Light	-
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The power source mode is on (IG) or the driver's door is closed. The power source mode is off and steering is locked.

There are two patterns for situation C.

When power source mode is anything other than off and the shift lever is in P, the driver closes the driver door and attempts to leave the vehicle while holding the key. In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Power source mode is anything other than off. Shift lever is in P. The state of the driver door changed from open to closed. Vehicle speed is 0.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY NOT DETECTED
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Sounds 3 times*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. There is a key in the cabin or in the luggage compartment.

*: Except models for China

Under the conditions of pattern 1, the driver touches the lock sensor. In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Power source mode is anything other than off. Shift lever is in P. All doors are closed. There is no key in the cabin or in the luggage compartment. There is the key in any of the exterior actuation areas. Lock sensor is touched or lock switch is pressed.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	Alternately shows "TURN POWER OFF" and "KEY NOT DETECTED".
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. There is a key in the cabin or in the luggage compartment. (stop only the wireless door lock buzzaer) Shift lever is in any position other than P. Vehicle speed is above 0. Any door is opened (stops only the wireless door lock buzzer). Approx. 10 seconds have elapsed from the time the warning started (stops only the wireless door lock buzzer). Approx. 60 seconds have elapsed from the time the warning started (the multi-information display only shows "KEY NOT DETECTED").

*: Except models for China

In situation D

If power source mode is anything other than off when a passenger gets out of the vehicle while holding the key, the following control is performed:

Possible Effects without Warning	Engine cannot be restarted
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Engine switch is in any mode other than off. The state of a door other than the driver door is changed from open to closed. There is no key in the cabin or in the luggage compartment. Vehicle speed is 0.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY NOT DETECTED
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Sounds 3 times*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. There is a key in the cabin or in the luggage compartment.

*: Except models for China

In situation E

If the key is not within the actuation areas, the following control is performed:

Possible Effects without Warning	Driver confusion
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Engine switch is pushed. There is no key in the cabin.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY NOT DETECTED
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Approx. 15 seconds have elapsed from the time the warning started. There is a key in the cabin or in the luggage compartment.

In situation F

If the key is left in the vehicle interior and the lock sensor is touched, the following control is performed:

Possible Effects without Warning	Driver confusion
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Power source mode is off. All doors are closed. There is a key in the cabin or in the luggage compartment. Lock sensor is touched or lock switch is pressed. Any door is unlocked.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY DETECTED IN VEHICLE
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is anything other than off. Doors are locked through the manual lock, wireless door lock function, or key-linked lock operation. Any door is opened (stops only the wireless door lock buzzer). Approx. 10 seconds have elapsed from the time the warning started (stops only the wireless door lock buzzer). Approx. 60 seconds have elapsed from the time the warning started (stops only the indication on the multi-information display). Vehicle speed is above 0.

*: Except models for China

In situation G

Any door is ajar, and the locking of the doors is attempted through the entry lock function by touching the lock sensor of an outside door handle or pressing the lock switch of the back door. In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Condition	The main body ECU gives a warning when all the following conditions are satisfied: Power source mode is off. Any door (other than the one performing the entry lock operation) is open. Lock sensor is touched or lock switch is pressed. There is no key in the cabin. There is the key in any of the exterior actuation areas.
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	-
		Master Warning Light	-
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is anything other than off. Doors are unlocked through the wireless door lock control function. An entry unlock operation is performed. All doors are closed. Approx. 10 seconds have elapsed from the time the warning started.

*: Except models for China

There are two patterns for situation H.

A key is confined inside the vehicle interior. In this situation, the following control is performed (pattern 1):

Possible Effects without Warning	Vehicle theft
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: All doors are locked. There is a key in the cabin or in the luggage compartment.
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	KEY DETECTED IN VEHICLE
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The power source mode is switched. Doors are locked through the manual lock, wireless door lock function, or key-linked lock operation. Vehicle speed is above 0. Any door is opened (stops only the wireless door lock buzzer). Approx. 10 seconds have elapsed from the time the warning started (stops only the wireless door lock buzzer). Approx. 60 seconds have elapsed from the time the warning started.

*: Except models for China

A key is confined inside the vehicle interior. In this situation, the following control is performed (pattern 2):

Possible Effects without Warning	Vehicle theft
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: Vehicle speed is 0. All doors are locked. There is a key in the cabin or in the luggage compartment. The glass hatch has been closed.
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	-
		Master Warning Light	-
	Wireless Door Lock Buzzer		Continuously sounds*
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Vehicle speed is above 0. Glass hatch is opened. Approx. 10 seconds have elapsed from the time the warning started.

*: Except models for China

In situation I

The key battery is low. In this situation, the following control is performed:

Possible Effects without Warning	Entry and start system does not function.
Warning Condition	The certification ECU gives a warning when all the following conditions are satisfied: After the power source mode has been on (IG) continuously for approx. 20 minutes or more, it is changed from on (IG) to off. Key battery is low.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY BATTERY LOW
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	Approx. 15 seconds have elapsed from the time the warning started.

In situation J

The steering lock cannot be released. In this situation, the following control is performed:

Possible Effects without Warning	Entry and start system does not function.
Warning Condition	The steering lock does not release when performing the release operation, preventing the engine from starting.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	STEERING LOCK ACTIVE
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
	Engine Switch	Indicator	Blinks green in 1-second cycles.
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Steering lock is unlocked. Steering lock is malfunctioning. Approx. 15 seconds have elapsed from the time the warning started (stops only the indication on the multi-information display). Approx. 30 seconds have elapsed from the time the warning started (stops only the blinking of the indicator).

In situation K

A malfunction of the steering lock ECU is detected. In this situation, the following control is performed:

Possible Effects without Warning	Malfunction detection
Warning Condition	Steering lock actuator assembly or power management control ECU malfunction, or steering lock/unlock switch failure.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	CHECK STEERING LOCK SYSTEM
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
	Engine Switch	Indicator	Blinks amber in 2-second cycles.
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off, and approx. 15 seconds have elapsed from the time the warning started (stops only the blinking of the indicator). The steering lock actuator assembly or power management control ECU malfunction has been resolved. Approx. 15 seconds have elapsed from the time the warning started (stops only the "CHECK STEERING LOCK SYSTEM" indication). A failure of the lock/unlock detection switch in the steering lock actuator assembly has been resolved.

In situation L

A malfunction is detected in the power management control ECU. In this situation, the following control is performed:

Possible Effects without Warning	Malfunction detection
Warning Condition	Malfunction detected in power management control ECU.
Warning Method	Engine Switch	Indicator	Blinks amber in 2-second cycles.
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Approx. 15 seconds have elapsed from the time the warning started. The malfunction in the power management control ECU has been resolved.

In situation M

The driver uses a mechanical key to open the door and presses the engine switch, but no key is detected in the vehicle interior. Or, the driver presses the engine switch, but no key is detected 2 consecutive times in the vehicle interior. In these situations, the following control is performed:

Possible Effects without Warning	Usability function
Prerequisite	Engine immobiliser function is on. No key is located inside the vehicle interior. Unlocking with a mechanical key or operating the engine switch has resulted in a certification failure 2 consecutive times.
Warning Condition	Engine switch is pushed.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	"DEPRESS BRAKE PEDAL, TOUCH ENGINE SWITCH WITH KEY"
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The key is detected in the cabin. Approx. 60 seconds have elapsed from the time the warning started.

In situation N

The multi-information display will show how to start the engine if the system assumes that the driver does not know how to start the engine:

Possible Effects without Warning	Usability function
Prerequisite	Power source mode is off and driver door is changed from closed to open.
Warning Condition	Power source mode is turned from on (ACC) → on (IG) → off → on (ACC).
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	"DEPRESS BRAKE PEDAL AND PUSH ENGINE SWITCH TO START"
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. Power source mode is on (IG). Approx. 10 seconds have elapsed from the time the warning started.
Warning Start Clear Condition	Engine starting operation is detected.

In situation O

If the shift lever is in a position in which the engine cannot be started, the display will show a shift position in which the engine can be started:

Possible Effects without Warning	Usability function
Prerequisite	Shift lever is in any position other than P or N.
Warning Condition	The power management control ECU gives a warning when all the following conditions are satisfied: Engine is stopped (starter is not cranking). Vehicle speed is 0. After the power source mode has turned on (IG), more than 0.5 seconds have elapsed.
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	SHIFT TO P POSITION TO START
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode turns to anything other than on (IG). Engine is started. Vehicle speed is above 0. Shift lever is moved to P or N.

In situation P

A warning message appears on the multi-information display when the driver attempts to turn the engine switch off with the shift lever in any position other than P or N.

Possible Effects without Warning	Usability function
Prerequisite	Shift lever is in any position other than P or N.
Warning Condition	Power source mode is turned from on (IG) to on (ACC).
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 10 seconds (and then automatically turned off). SHIFT TO P RANGE AND PUSH ENGINE SWITCH TO TURN POWER OFF
		Master Warning Light	Blinks for 10 seconds
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Shift lever is in P. Power source mode is turned to anything other than on (ACC).

In situation Q

An automatic power off operation is detected. In this situation, the following control is performed:

Possible Effects without Warning	Battery saving function
Prerequisite	Shift lever is in P. Power source mode is on (ACC) or on (IG).*
Warning Condition	Power source mode is turned from on (IG) or on (ACC) to off through the activation of the automatic power off operation.
Warning Method	Combination Meter Assembly	Multi Buzzer	-
		Multi-information Display	AUTO POWER OFF TO CONSERVE BATTERY
		Master Warning Light	-
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is turned to anything other than off. Approx. 10 seconds have elapsed from the time the warning started.

Tech Tips

*: Engine is stopped and vehicle speed is 0.

In situation R

The driver holds a key against the engine switch. In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Condition	ID code certification is completed.
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	"DEPRESS BRAKE PEDAL AND PUSH ENGINE SWITCH TO START"
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: A key is inside the vehicle interior. Engine speed is 500 rpm or more. Engine immobiliser function is on. Approx. 10 seconds have elapsed from the time the warning started.

In situation S

The driver started driving without having a key in the vehicle interior. In this situation, the following control is performed:

Possible Effects without Warning	Restarting prevention
Prerequisite	In situation A (pattern 2), C (pattern 1) or D
Warning Condition	Vehicle speed is present while no key is in vehicle interior. (at first time only)
Warning Method	Combination Meter Assembly	Multi Buzzer	Sounds once
		Multi-information Display	KEY NOT DETECTED
		Master Warning Light	Blinks
	Wireless Door Lock Buzzer		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: Power source mode is off. A key is inside the vehicle interior.

Battery Saving Function
1. Vehicle Battery Saving
  - Control
  - Revert Condition
  Tech Tips
  
  *: Reverts from Control 2 to Control 7.
2. Key Battery Saving
  - Control
  - Revert Condition
Key Cancel Function
1. A key cancel function is provided to make it possible to disable the entry and start system. Key cancel can be operated when certain operations are performed when the vehicle is in the following condition:
  - Engine switch is off.
  - Driver door is closed.
  - Driver door is unlocked.
  Tech Tips
  
  The operation procedure is as follows:
  
  1. Unlock once with the unlock button of the key.
  
  2. Open the driver door within 5 seconds.
  
  3. Unlock twice with the unlock button of the key within 5 seconds.
  
  4. Repeat open → close twice for the driver door within 30 seconds, and open again. (Driver door: open → close → open → close → open)
  
  5. Unlock twice with the unlock button of the key within 30 seconds.
  
  6. Repeat open → close once for the driver door within 30 seconds, and open again. (Driver door: open → close → open)
  
  7. Close the driver door within 5 seconds.
  
  8. When key cancel is activated, the wireless door lock buzzer sounds twice.*
  
  9. To return to the original condition, perform the procedures again. When key cancel is returned, the wireless door lock buzzer sounds once.*
  - *: Except models for China

Key Code Registration Function

The table below shows the 4 special ID code registration function modes through which up to 7 different codes can be registered. The codes are electronically registered (written and stored) in the EEPROM. For details, refer to the corresponding Repair Manual for this model.

Mode	Function
Rewrite	Clears all previously registered codes and registers only the newly received codes. This mode is used whenever a transmitter or an integration relay is replaced.
Add	Adds a newly received code while preserving previously registered codes. This mode is used when adding a new transmitter. If the number of codes exceeds 7, the oldest registered code is cleared first.
Confirm	Confirms how many codes are currently registered. When adding a new code, this mode is used to check how many codes already exist.

DIAGNOSIS
1. The power management control ECU can detect malfunctions in the start function when the power source mode is on (IG). When the ECU detects a malfunction, the amber indicator light of the engine switch flashes to warn the driver. At the same time, the ECU stores the 5-digit DTC in the memory.
2. The indicator light warning continues for 15 seconds even when the power source mode is turned off.
3. The DTC can be read by connecting an intelligent tester II to the DLC3.
4. The start function cannot be operated again if a malfunction occurs.
5. For details, refer to the corresponding Repair Manual for this model.