System Description [03/2017 - ]

SYSTEM DESCRIPTION

The following pattern will be used: "Operation" indicates user operation using the smart key system. "Expected operation of the vehicle" indicates how a known good vehicle will react in accordance with each operation. "Suspected Area/Diagnosis" indicates suspected malfunctioning areas and tips for each diagnosis if the vehicle did not react as expected.

Example: Operation No.

Operation	-
Expected operation of the vehicle	-
Waveform or Output Value	-

Suspected Area	Diagnosis
-	-

BASIC PRECAUTIONS
1. DTC numbers and ECU Data Lists of the smart key system can be checked using the Techstream.
2. Check for DTCs using the following procedure. If any DTCs are output, diagnose those DTCs first.
  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Enter the following menus: Body Electrical / Smart Key or Power Source Control / Trouble Codes.
  4. Enter the following menus: Powertrain / Engine / Trouble Codes.
3. When using the Techstream with the vehicle engine switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
4. If cancel is selected for the smart key system customize setting, cancel the smart key cancel setting (Refer to CUSTOMIZE PARAMETERS [03/2017 - ] ).
DIAGRAM OF SMART KEY SYSTEM

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SMART KEY SYSTEM SPECIFICATIONS

Some customers may inquire about the frequency used by the smart key system (for Entry Function) on various models. This repair manual contains the applicable specifications of the smart key system (for Entry Function).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SPECIFICATIONS FOR SMART KEY SYSTEM ANTENNA LF OUTPUT POWER

	Specification
	Frequency	Output Power/Electric Field Intensity	Modulation Method	Mounting Point in Vehicle
Inside Passenger Compartment (Front Floor)	134.2 kHz	81.5 dBuV/m at 3 m	AM	Inside front floor
Inside Passenger Compartment (Rear Floor)	134.2 kHz	85.7 dBuV/m at 3 m	AM	Inside rear floor
Inside Luggage Compartment	134.2 kHz	83.0 dBuV/m at 3 m	AM	Inside Luggage Compartment
Outside Vehicle	134.2 kHz	94.0 dBuV/m at 3 m	AM	Inside door handle
Outside Vehicle	134.2 kHz	94.0 dBuV/m at 3 m	AM	Inside rear bumper

SPECIFICATIONS FOR SMART KEY SYSTEM ANTENNA LF TRANSMISSION TIMING

	Transmission Timing
	Vehicle Remains Parked	Entering or Exiting the Vehicle	Vehicle is being Driven
Inside Passenger Compartment	Does not transmit	Operating door locks Operating engine switch / depressing brake pedal1 or clutch pedal2 Opening or closing doors With on (IG) or on (ACC), and in the P1, closing a door when the electrical key transmitter sub-assembly cannot be detected inside the vehicle (transmits in 3-second intervals until the electrical key transmitter sub-assembly is detected or the engine switch is turned off) Engine switch is off after driving for more than 20 minutes (Not in the P) when shutting the door, if the electrical key transmitter sub-assembly cannot be detected inside the vehicle (transmits in 3-second intervals until the electrical key transmitter sub-assembly is detected)1	When vehicle has been driven while electrical key transmitter sub-assembly is not detected inside passenger compartment (transmits in 4-second intervals)
Inside Luggage Compartment	Does not transmit	Door lock is operated / luggage open switch is depressed Closing the luggage compartment door Opening or closing door	Does not transmit
Outside Vehicle	When door is locked, transmits at 250ms intervals (stops when door is unlocked) Does not transmit under conditions other than 1	Touch the lock sensor Luggage open switch is depressed Touch the unlock sensor at power saving mode	Does not transmit

*1: for Automatic Transmission
*2: for Manual Transmission

DIAGNOSIS IN ACCORDANCE WITH USER OPERATION

Operation 1

Operation

Turn the engine switch off and lock all the doors, then take the electrical key transmitter sub-assembly approximately 3 m (9.84 ft.) or more away from the vehicle.
HINT:
The detection area of each electrical key antenna (outside) is formed by emitting a periodic LF band request signal every 0.25 seconds. The detection area formed by each front door outside handle assembly (electrical key antenna) has a detection range of approximately 0.7 m (2.30 ft.).

Waveform or output value

Pulse generation (D41-12 (CLG1) - D48-11 (GND)*)

*: Refer to TERMINALS OF ECU [03/2017 - ]

Operation 2

Operation	Bring the electrical key transmitter sub-assembly within 0.7 m (2.30 ft.) of the driver door. HINT: The system is in unlock standby mode when the electrical key transmitter sub-assembly is in the detection area and the key ID code sent by the electrical key transmitter sub-assembly matches the key ID code stored by the certification ECU (smart key ECU assembly). The door unlocks if the unlock sensor is touched by hand with the system in unlock standby mode. Signal transmission: Certification ECU (smart key ECU assembly) → Front door outside handle assembly (electrical key antenna) → Electrical key transmitter sub-assembly → Door control receiver → Certification ECU (smart key ECU assembly) → Main body ECU (network gateway ECU))
Expected operation of the vehicle	The electrical key transmitter sub-assembly LED starts blinking. If it does not, any of the parts listed in the table below may be malfunctioning.
Waveform or output value	Pulse generation (D41-12 (CLG1) - D48-11 (GND)) Pulse generation (D40-17 (RDA) - D48-11 (GND)) Pulse generation (D40-19 (RSSI) - D48-11 (GND)*)

*: Refer to TERMINALS OF ECU [03/2017 - ]

Suspected Area	Diagnosis
Electrical key transmitter sub-assembly	The key ID code sent by the electrical key transmitter sub-assembly does not match the key ID code stored in the certification ECU (smart key ECU assembly). Use another electrical key transmitter sub-assembly to check the operation. If the LED of the electrical key transmitter sub-assembly does not blink when it is brought within 0.7 m (2.30 ft.) of the driver door, perform the following procedure. Press the lock and unlock buttons of the electrical key transmitter sub-assembly to check the operation. If the doors can be locked and unlocked, that means the detection area has not been formed. Parts other than the electrical key transmitter sub-assemblies and door control receiver may be malfunctioning. If the electrical key transmitter sub-assembly malfunctions, the engine cannot be started and the engine switch cannot be turned on (ACC or IG). Under normal operation, the smart warning light in the combination meter assembly blinks green when the engine switch is pressed with the electrical key transmitter sub-assembly in the driver seat, the shift lever in P1 and the brake pedal1 or clutch pedal*2 not depressed. If the door cannot be opened, use the mechanical key installed in the electrical key transmitter sub-assembly to open the door. HINT: Before replacing the electrical key transmitter sub-assembly, check if the transmitter battery is depleted.
Transmitter battery is depleted	Press and hold the lock switch of the electrical key transmitter sub-assembly for 5 seconds and check the number of times that the transmitter LED blinks. If the transmitter LED does not blink or blinks only once or twice, the transmitter battery may be depleted. If the transmitter LED does not blink at all, the electrical key transmitter sub-assembly may be malfunctioning. If the transmitter battery voltage before the electrical key transmitter sub-assembly sends a signal drops to 2.7 V or less, "Yes" is displayed for "Key Low Battery" in the Data List. If the transmitter battery voltage drops to 2.4 V or lower, operation cannot be assured. HINT: The output of the electrical key transmitter sub-assembly will decrease if it is in low temperatures. When the transmitter battery is depleted, the engine cannot be started and the engine switch cannot be turned on (ACC or IG). If the electrical key transmitter sub-assembly is held near the engine switch the engine can be started. Make sure that the transmitter battery type and installation direction are correct.
Wave Interference	If the problem occurs in certain locations or times of day, the possibility of wave interference is high. When the electrical key transmitter sub-assembly is malfunctioning, the transmitter battery is depleted, an electrical key transmitter sub-assembly from another vehicle has been used or wave interference is suspected. "Yes" may be displayed for any of the following Data List items: "Unmatched Vehicle-ID", "No Response", "Unmatch Code or Form" or "ID Code Difference(Resp)".
Certification ECU (smart key ECU assembly)	-
Front door outside handle assembly	Vehicle exterior detection area is not formed properly. If the electrical key transmitter sub-assembly LED does not blink within 0.7 m (2.30 ft.) of the front door outside handle assembly of the driver door, but blinks within 0.7 m (2.30 ft.) of the front passenger door, the front door outside handle assembly of the driver door may be malfunctioning. Even if the vehicle exterior detection area is not formed properly, the engine switch can be turned on (ACC) and the engine can be started. Formation of the vehicle exterior detection area can be confirmed by using the Techstream (Refer to OPERATION CHECK [03/2017 - 12/2017] Refer to OPERATION CHECK [12/2017 - ] ). Even if the vehicle exterior detection area is not formed properly, the doors can be unlocked by pressing the unlock button of the electrical key transmitter sub-assembly.
Door control receiver	If the door control receiver is malfunctioning, it is not possible to unlock the front passenger door. If the door control receiver is malfunctioning, it is not possible to unlock the doors by a wireless unlock operation. If the door control receiver is malfunctioning, the engine cannot be started and the engine switch cannot be turned on (ACC or IG) unless in an emergency. Formation of the vehicle exterior detection area can be confirmed by using the Techstream (Refer to OPERATION CHECK [03/2017 - 12/2017] Refer to OPERATION CHECK [12/2017 - ] ).
Vehicle battery is discharged	It may be possible to tell whether the vehicle battery is discharged by operating the horn.
Others	If the smart key function has been cancelled through the customize function, the detection area cannot be formed, therefore the electrical key transmitter sub-assembly LED will not blink even if the electrical key transmitter sub-assembly is brought near a front door outside handle assembly. In the smart key system, if the electrical key transmitter sub-assembly is constantly in the exterior detection area of one of the doors, the transmitter battery could be drained. For this reason, if this state continues longer than 10 minutes, the smart key system automatically deactivates the exterior detection area that the electrical key transmitter sub-assembly is in. If the electrical key transmitter sub-assembly is left in the vehicle and the doors are locked using another electrical key transmitter sub-assembly, the electrical key transmitter sub-assembly LED will not blink even if it is brought near a front door outside handle assembly.

*1: for Automatic Transmission
*2: for Manual Transmission

Operation 3

Operation	Touch the unlock sensor of the driver door with the electrical key transmitter sub-assembly in the exterior detection area.
Expected operation of the vehicle	While the doors are unlocked, the answer back is performed at the same time. If they do not, any of the parts listed in the table below may be malfunctioning.
Waveform or output value	Pulse generation (D41-12 (CLG1) - D48-11 (GND)) Tester Condition "main body ECU (network gateway ECU), instrument panel junction block assembly

*: Refer to TERMINALS OF ECU [03/2017 - ]

Suspected Area	Diagnosis
The suspected parts below overlap with the parts covered in operation 2 for when the electrical key transmitter sub-assembly LED does not blink.	-
Front door outside handle assembly (unlock sensor)	If the doors can be unlocked by touching the unlock sensor of the front passenger door while carrying the electrical key transmitter sub-assembly, the unlock sensor of the driver door may be malfunctioning. Under normal operation, "ON" is displayed for the Data List item "D-Door Touch Sensor" when the unlock sensor is touched.
Door lock/unlock mechanism	If a door cannot be locked/unlocked by operating the door control switch on the door in the cabin, the door lock mechanism is malfunctioning.

Operation 4

Operation

After getting into the vehicle while carrying the electrical key transmitter sub-assembly, close the door and press the engine switch once with the shift lever in P*1 while not depressing the brake pedal*1 or clutch pedal*2.

Expected operation of the vehicle

The smart warning light in the combination meter assembly blinks green slowly, and the engine switch is turned on (ACC).
The steering wheel is unlocked.

If it does not, the parts listed below may be malfunctioning.HINT: When the engine switch is pressed, the indoor electrical key oscillator forms a key detection area inside the vehicle and detects the electrical key transmitter sub-assembly in the cabin. The electrical key transmitter sub-assembly sends the ID code upon receiving a request signal and the electrical key transmitter sub-assembly LED illuminates for a short time. After pressing the engine switch, if the key ID code sent by the electrical key transmitter sub-assembly matches the key ID code stored by the certification ECU (smart key ECU assembly), the ACC relay turns on and the smart warning light in the combination meter assembly blinks green slowly. Then after the power source mode has changed, L code and S code*3 verification has been completed, the steering wheel will be unlocked and the immobiliser will be inactive. Then the Data List status of "Immobiliser" will be changed from "Set" to "Unset".Signal transmission: Certification ECU (smart key ECU assembly) → Indoor electrical key oscillator → Electrical key transmitter sub-assembly → Door control receiver → Certification ECU (smart key ECU assembly)HINT: The interior detection area is formed when any of the following conditions are met:

Any of the doors are open.
Within approximately 30 seconds after any of the doors have been opened and closed.
The brake pedal is depressed.*1
The clutch pedal is depressed.*2
Within approximately 30 seconds after the brake*1 or clutch*2 pedal has been depressed.
Right after the engine switch is pressed.

Waveform or output value

Pulse generation (D40-17 (RDA) - D48-11 (GND)*4)
Pulse generation (D41-3 (CLG5) - D48-11 (GND)*4)
Pulse generation (D59-3 (SLR+) - D59-1 (GND)*4)

*1: for Automatic Transmission
*2: for Manual Transmission
*3: w/ ID Code Box
*4: Refer to TERMINALS OF ECU [03/2017 - ]

Suspected Area	Diagnosis
Certification ECU (smart key ECU assembly)	-
Wave Interference	If malfunctions occur at a specific location/time, wave interference may be the cause. If wave interference is suspected in the cabin, disconnect all the connectors of electronic devices besides standard equipment, or remove the electronic devices and check for noise.
Indoor electrical key oscillators that form the interior detection areas.	If the interior detection areas are not formed properly, the engine cannot be started and the engine switch cannot be turned on (ACC or IG). If the electrical key transmitter sub-assembly is held near the engine switch in an emergency, the engine can be started. Using the Techstream, enter the key diagnostic mode to forcibly form the interior detection area. If the electrical key transmitter sub-assembly is brought near the area, short beeps sound (Refer to OPERATION CHECK [03/2017 - 12/2017] Refer to OPERATION CHECK [12/2017 - ] ).
Engine switch	Under normal operation, after the engine switch is pressed, "ON" is displayed for the Data List items "Start Switch1" and "Start Switch2".
ID code box (immobiliser code ECU)*1	It is necessary for "S Code Check" in the Data List to display "OK". If "S Code Check" displays "OK", the certification ECU (smart key ECU assembly) code and ID code box (immobiliser code ECU) code match.
Park/neutral position switch assembly*2	Under normal conditions, "Neutral SW/ Clutch SW" in the Data List displays "ON" when the shift lever is moved to P.
Steering lock ECU (steering lock actuator assembly)	If "OK" is displayed for the Data List item "L Code Check" when the engine switch is turned on (ACC), power will be supplied to the steering motor for approximately 10 seconds. Then the ECU sends an unlock signal to the steering motor and the Data List item "Unlock Request Receive" temporarily changes from "NG" to "OK". After the steering unlocks the ECU receives the unlocked signal from the steering motor and the Data List item "Steering Unlock" changes from "Unset" to "Set". In order to unlock the steering wheel, it is necessary that "OK" is displayed for the Data List item "L Code Check" (the ID code stored in the steering lock ECU (steering lock actuator assembly) and "S Code Check" (ID code box (immobiliser code ECU)) matches that of the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU))1. In order to unlock the steering wheel, it is necessary that "OK" is displayed for the Data List item "L Code Check" (the ID code stored in the steering lock ECU (steering lock actuator assembly) matches that of the certification ECU (smart key ECU assembly))3.

*1: w/ ID Code Box
*2: for Automatic Transmission
*3: w/o ID Code Box

HINT:

The electrical key transmitter sub-assembly, the transmitter battery and the vehicle battery have already been inspected in the previous operation steps. However, if they have not been inspected, inspect them.

Operation 5

Operation	Depress the brake pedal1 or clutch pedal2 with the shift lever in P*1 while carrying an electrical key transmitter sub-assembly.
Expected operation of the vehicle	The smart warning light in the combination meter assembly illuminates green. If it does not, the parts listed below may be malfunctioning.

*1: for Manual Transmission
*2: for Automatic Transmission

Suspected Area	Diagnosis
Stop light switch assembly*1	If the brake pedal is depressed, "ON" is displayed for the Data List item "Stop Light Switch1".
Clutch start switch assembly*2	If the clutch pedal is depressed, "ON" is displayed for the Data List item "Neutral SW/ Clutch SW".
Certification ECU (smart key ECU assembly)	Start function-Terminals of ECU (Refer to TERMINALS OF ECU [03/2017 - ] )

*1: for Automatic Transmission
*2: for Manual Transmission

Operation 6

Operation

After getting into the vehicle while carrying the electrical key transmitter sub-assembly, press the engine switch with the shift lever in P*1 while depressing the brake pedal*1 or clutch pedal*2.

Expected operation of the vehicle

The engine starts. If it does not, the parts listed below may be malfunctioning.
HINT:
If the push start switch is pushed while the steering lock is unlocked, the starter activation request output terminal on the smart key computer assembly (certification ECU) sends out the starter activation request signal to the ECM, and then the starter relay terminal of the ECM supplies 12 V to the starter relay.

*1: for Automatic Transmission
*2: for Manual Transmission

Suspected Area	Diagnosis
Steering lock system	Under normal operation, the steering wheel will be unlocked and "ON" is displayed for the Data List item "Steering Unlock Switch".
Certification ECU (smart key ECU assembly)	The Data List item [Starter Request Signal] is an output that is requesting the engine to be started. When this is [ON], the smart key computer assembly (certification ECU) is sending out the engine start request signal to the ECM.
ECM	The Data List item [Starter SW] is a starter activation command. When this is turned "ON", a voltage of 12 V is output to the starter relay terminal and applied to the starter relay.
Starter relay	The Data List item [Starter Signal] indicates the starter relay terminal voltage of the ECM, and indicates if the voltage was actually applied on the starter relay or not.
Starter	-
Vehicle battery is discharged	Whether the vehicle battery is discharged or not can be checked easily by operating the horn.

Operation 7

Operation	Press the engine switch.
Expected operation of the vehicle	The engine stops, the smart warning light blinks green.

Operation 8

Operation	Open any of the doors with the engine switch off.
Expected operation of the vehicle	The steering wheel locks. If it does not, the parts listed below may be malfunctioning.

Suspected Area	Diagnosis
Steering lock system	-
Door courtesy light switch assembly	When any of the doors are opened, "OFF" is displayed for the Data List item "D Door Courtesy SW".

Operation 9

Operation	Touch the lock sensor of the driver door outside handle while carrying the electrical key transmitter sub-assembly.
Expected operation of the vehicle	Answer back is performed at the same time when the doors are locked.

VEHICLE BATTERY SAVING FUNCTION
1. When the smart key system (for Entry Function) is operating, the vehicle performs key detection operations every 0.25 seconds. Therefore, if the vehicle left as is for a long period of time, the battery may become fully depleted. The following controls help reduce the rate at which the battery is depleted.
  1. If the engine is not started for 5 days or more, periodic signal transmission from the electrical key antennas stops. However, the doors can still be unlocked by touching the unlock sensor of a front door outside handle assembly.
  2. If the engine is not started for 14 days or more, the lock and unlock sensors of the front passenger side door outside handle assembly are disabled. Therefore, only the unlock sensor of the front door outside handle assembly of the driver side door can be used to unlock the doors.
  3. If 10 minutes or more elapse while the electrical key transmitter sub-assembly is in an exterior detection area, the exterior electrical key antenna detecting the electrical key transmitter sub-assembly will stop operating.
2. To restore operation of the smart key system, perform any of the following operations.
  1. While carrying the key, touch the lock and unlock sensor of the front door outside handle assembly of the driver side door and perform a door lock or unlock operation.
  2. Lock or unlock all doors with the wireless operation.

WARNING FUNCTION

Shift lever not in P (power source cut reminder) vehicle exit warning (for Automatic Transmission)

Situation A: The driver side door is opened and vehicle exit is attempted while the shift lever is not in P.

Item	Content
Reason for warning	Prevention of sudden forward movement of vehicle Vehicle theft prevention Vehicle roll-away (vehicle starts moving even when nobody is aboard due to slope, etc.) prevention
Warning start condition (All conditions are met)	Engine switch is on (ACC) or on (IG) Shift lever is not in P Driver side door is opened Vehicle is stopped
Warning description	Buzzer in combination meter assembly sounds continuously (beep) "Shift to P position when parked" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Engine switch is turned off Shift lever is in P Driver side door is closed Vehicle is driven

Situation B: Under the conditions specified in situation A, the electrical key transmitter sub-assembly is brought out of the vehicle, the driver side door is closed and movement away from the vehicle is attempted.

Item	Content
Reason for warning	Prevention of sudden forward movement of vehicle Vehicle theft prevention Vehicle roll-away (vehicle starts moving even when nobody is aboard due to slope, etc.) prevention
Warning start condition (All conditions are met)	Engine switch is on (ACC) or on (IG) Shift lever is not in P Driver side door is opened and then closed Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior) Vehicle is stopped
Warning description	Buzzer in combination meter assembly sounds continuously (beep) Smart warning light flashes orange in combination meter assembly Wireless buzzer sounds continuously (beep) "Shift to P position when parked" (A) and "Key not detected" (B) are displayed alternately in the combination meter assembly
Warning stop condition (Any condition is met)	Engine switch is turned off ([A] continues to be displayed) Shift lever is in P ([B] continues to be displayed) Vehicle is driven ([B] continues to be displayed) Electrical key transmitter sub-assembly is detected inside vehicle (matching code is detected in vehicle interior) ([A] continues to be displayed)

Warning when turning engine switch off with shift lever not in P. (for Automatic Transmission)

Situation A: An attempt is made to turn the engine switch off while the shift lever is not in P.

Item	Content
Reason for warning	Vehicle battery saving Vehicle roll-away (vehicle starts moving even when nobody is aboard due to slope, etc.) prevention
Warning start condition (All conditions are met)	Shift lever is not in P Vehicle is stopped Engine is running and then stopped
Warning description	Buzzer in combination meter assembly sounds continuously (beep) "Shift to P position when parked" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Shift lever is in P Engine is started

Situation B: Under the conditions specified in situation A, the shift lever is moved to P.

Item	Content
Reason for warning	Vehicle battery saving Vehicle roll-away (vehicle starts moving even when nobody is aboard due to slope, etc.) prevention
Warning start condition	Shift lever moved to P
Warning description	Buzzer in combination meter assembly sound once (beep) "Turn Power Off" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Power source mode is changed to any mode other than on (ACC) Shift lever is not in P

Shift lever in P* (power source cut reminder) vehicle exit warning (Key reminder warning)

*: for Automatic Transmission

Situation A: The driver side door is opened and vehicle exit is attempted while the steering lock is unlocked.

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (Either condition is met)	Condition 1: Engine switch is on (ACC) Driver side door is opened Condition 2 (1 second): Engine switch is off Driver side door is opened Steering lock is unlocked
Warning description	Buzzer in combination meter assembly sounds continuously (beep)
Warning stop condition (Any condition is met)	Engine switch is turned on (IG) Driver side door is closed Engine switch is turned off and steering lock is locked

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (All conditions are met)	Engine switch is on (ACC) or on (IG) Shift lever moved to P* Driver side door is opened and then closed Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior) Vehicle is stopped
Warning description	Buzzer in combination meter assembly sound once (beep) Wireless buzzer sounds 3 times (short beeps) Smart warning light flashes orange in combination meter assembly "Key not detected" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Engine switch is turned off Electrical key transmitter sub-assembly is detected inside vehicle (matching code is detected in vehicle interior)

*: for Automatic Transmission

Situation C: Under the conditions specified in situation B, the doors are closed and an entry lock operation is attempted.

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (All conditions are met)	Engine switch is on (ACC) or on (IG) Shift lever is in P* Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior) Electrical key transmitter sub-assembly is outside vehicle (matching code is detected outside of vehicle) Entry lock operation is performed while carrying electrical key transmitter sub-assembly Vehicle is stopped
Warning description	Buzzer in combination meter assembly sound once (beep) Wireless buzzer sounds continuously (beep) Smart warning light flashes orange in combination meter assembly "Turn Power Off" (A) and "Key not detected" (B) are displayed alternately in the combination meter assembly
Warning stop condition (Any condition is met)	10 seconds elapse after warning starts (only wireless buzzer stops) 60 seconds have elapsed after the warning started ([B] continues to be displayed) Engine switch is turned off Shift lever is not in P* Vehicle is driven ([B] continues to be displayed) Electrical key transmitter sub-assembly is detected inside vehicle (matching code is detected in vehicle interior) Any door is opened (only wireless buzzer stops) Any door is closed (only wireless buzzer stops)

*: for Automatic Transmission

Passenger has brought electrical key transmitter sub-assembly out of vehicle warning

Any door other than the driver side door is opened and vehicle exit is attempted while carrying the key.

Item	Content
Reason for warning	Prevention of engine being unable to be restarted
Warning start condition (All conditions are met)	Engine switch is on (ACC) or on (IG) Any door other than driver side door is opened and then closed Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior) Vehicle is stopped
Warning description	Buzzer in combination meter assembly sounds once (beep) Wireless buzzer sounds 3 times (short beeps) Smart warning light flashes orange in combination meter assembly "Key not detected" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Engine switch is turned off Electrical key transmitter sub-assembly is detected inside vehicle (matching code is detected in vehicle interior)

Key is not within detection area warning

An attempt is made to turn the engine switch on (ACC) or on (IG) or to start the engine while the key cannot be detected inside the vehicle or is not operating properly.

Item	Content
Reason for warning	User confusion prevention
Warning start condition (All conditions are met)	Engine immobiliser is set Electrical key transmitter sub-assembly is not inside vehicle or if the key touches the engine switch when the battery in the key is dead, when there is an entry cancel (matching code is not detected in vehicle interior)
Warning description	Buzzer in combination meter assembly sounds once (beep) Smart warning light flashes orange in combination meter assembly "Key not detected" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	15 seconds elapse after warning starts Electrical key transmitter sub-assembly is inside vehicle or if the key touches the engine switch when the battery in the key is dead, when there is an entry cancel (matching code is detected in vehicle interior)

Starting to drive without key warning

The driver starts driving while they key is not in the vehicle.

Item	Content
Reason for warning	Prevention of engine being unable to be restarted
Warning start condition (All conditions are met)	Engine switch is on (IG) While passenger has brought key out of vehicle warning Vehicle is driven Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior)
Warning description	Buzzer in combination meter assembly sound 7 seconds (beep) Smart warning light flashes orange in combination meter assembly "Key not detected" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	Engine switch is turned off Electrical key transmitter sub-assembly is detected inside vehicle (matching code is detected in vehicle interior)

Key left inside vehicle warning

An entry lock operation is attempted while the key is inside the vehicle.

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (All conditions are met)	Engine switch is off All doors are closed Electrical key transmitter sub-assembly is inside vehicle (matching code is detected in vehicle interior) Touch the lock sensor (No door lock operation is performed) Vehicle is stopped
Warning description	Wireless buzzer sounds continuously (beep) "Key detected in vehicle" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	5 seconds elapse after warning starts Engine switch is turned on (ACC) or on (IG) Any door is opened Perform lock operation other than entry lock operation 60 seconds have elapsed after the warning started

Door ajar entry lock warning

An entry lock operation is attempted while any door is ajar.

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (All conditions are met)	Engine switch is off Any door is opened (except for doors whose touch sensor is touched) Touch the lock sensor or press the lock switch of the electrical key transmitter sub-assembly Electrical key transmitter sub-assembly is outside vehicle (matching code is detected outside of vehicle)
Warning description	Wireless buzzer sounds continuously (beep)
Warning stop condition (Any condition is met)	5 seconds elapse after warning starts Engine switch is turned on (ACC) or on (IG) All doors are closed Wireless unlock operation is performed Entry unlock operation is performed while carrying electrical key transmitter sub-assembly

Key lock-in prevention function

The electrical key transmitter sub-assembly is locked in the vehicle.

Item	Content
Reason for warning	Vehicle theft prevention
Warning start condition (All conditions are met)	Keyless lock operation* is performed Electrical key transmitter sub-assembly is inside vehicle (matching code is detected in vehicle interior) Vehicle is stopped
Warning description	Buzzer in combination meter assembly sound once (beep) Wireless buzzer sounds continuously (beep) "Key detected in vehicle" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	5 seconds elapse after warning starts Power source mode is changed Any door is opened Lock operation is performed Vehicle is driven

*: A keyless lock operation is when a door is locked by operating the door lock knob of an open door, and then closing the door while pulling the front door outside handle assembly.

Key battery low warning

The vehicle is driven while the transmitter battery is almost depleted.

Item	Content
Reason for warning	Helpful function Prevention of engine being unable to be restarted
Warning start condition (Either condition is met)	Condition 1: Engine switch is on (IG) for 20 minutes or more and then turned off Transmitter battery is almost depleted Electrical key transmitter sub-assembly is inside vehicle (matching code is detected in vehicle interior) Vehicle is stopped Condition 2: Engine is not running and then started Transmitter battery is almost depleted Electrical key transmitter sub-assembly is inside vehicle (matching code is detected in vehicle interior) Vehicle is stopped There is a key low battery warning record*
Warning description	Buzzer in combination meter assembly sounds once (beep) Smart warning light flashes orange in combination meter assembly "Key Battery Low" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	15 seconds elapse after warning starts Vehicle is driven

*: A key low battery warning record when the engine switch was turned off after 20 minutes has elapsed since the engine switch was turned on (IG).

Steering not unlocked warning

The steering cannot be unlocked.
Shift lever is moved to a position other than P before the steering is unlocked (for Automatic Transmission).

Item	Content
Reason for warning	Helpful function
Warning start condition	Steering lock cannot be released
Warning description	Buzzer in combination meter assembly sounds once (beep) Smart warning light flashes green in combination meter assembly "Steering Lock active" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	15 seconds elapse after warning starts Steering lock is unlocked

Smart key system error warning

An error that could lead to a malfunction in the steering lock ECU is detected, an ignition drive circuit malfunction is detected, or a vehicle speed information error is detected.

Item	Content
Reason for warning	Malfunction detection
Warning start condition (Any conditions are met)	Malfunction of the steering lock ECU (steering lock actuator assembly) Malfunction of the certification ECU (smart key ECU assembly) Malfunction of the steering lock / unlock position switch An ignition relay output circuit malfunction is detected. A vehicle speed malfunction judgment detected. Lost communication for the vehicle speed signal detected. When the clutch start switch is on more than 300 seconds after the driver side door is opened from fully closed with the engine switch off*
Warning description	Buzzer in combination meter assembly sounds once (beep) Smart warning light flashes orange in combination meter assembly "Check Access System with Elec. Key" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Any condition is met)	15 seconds elapse after warning starts Returns to normal.

*: for Manual Transmission

Emergency procedure display

When the driver door is opened using the mechanical key and the engine switch is pressed, the electrical key transmitter sub-assembly cannot be detected in the vehicle, or when the engine switch is pressed, the electrical key transmitter sub-assembly cannot be detected two times in a row.

Item	Content
Reason for warning	Helpful function
Warning start condition (Any condition is met)	Engine immobiliser system is set Electrical key transmitter sub-assembly is not inside vehicle (matching code is not detected in vehicle interior) Key code verification error occurs when the engine switch is pressed twice or the driver door key-linked unlock operation is performed
Warning description	Buzzer in combination meter assembly sounds once (beep) Smart warning light flashes orange in combination meter assembly "Depress brake pedal, touch engine switch with key" is displayed in the multi-information display in the combination meter assembly (for Automatic Transmission) "Depress clutch pedal, touch engine switch with key" is displayed in the multi-information display in the combination meter assembly (for Manual Transmission)
Warning stop condition (Either condition is met)	60 seconds have elapsed after the warning started Electrical key transmitter sub-assembly is in the vehicle. (Interior verification succeed or verification succeed when the transmitter battery is depleted and the electrical key transmitter sub-assembly was touched to the engine switch) Driver door is opened using the door outside handle and 30 seconds have elapsed

Engine starting support

There are two patterns for this situation.

Pattern 1:
A warning message appears on the multi-information display when the driver does not follow the proper procedure to start the vehicle.

In this situation, the following control is performed:

Item	Content
Reason for warning	Helpful function
Warning start condition (All conditions are met)	Engine switch is turned off and driver side door is closed → opened Engine switch is turned from off to on (ACC) more than twice with the engine off and the brake pedal or clutch pedal*2 not depressed
Warning description	Buzzer in combination meter assembly sounds once (beep) "Depress brake pedal and push engine switch to start" is displayed in the multi-information display in the combination meter assembly1 "Depress clutch pedal and push engine switch to start" is displayed in the multi-information display in the combination meter assembly2
Warning stop condition (Either condition is met)	10 seconds have elapsed after the warning started Engine switch is turned off Engine switch is turned on (IG)

*1: for Automatic Transmission
*2: for Manual Transmission

Pattern 2:
A message indicating how to start the engine appears on the multi-information display when the shift lever is in a position in which the engine cannot be started. (for Automatic Transmission)

In this situation, the following control is performed:

Item	Content
Reason for warning	Helpful function
Warning start condition (All conditions are met)	Engine is stopped Vehicle is stopped Starter is not operating Shift lever is not in P More than 0.5 seconds have elapsed after the engine switch is turned on (IG)
Warning description	Buzzer in combination meter assembly sounds once (beep) "Shift to P position to Start" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Either condition is met)	Power source mode is changed to any mode other than on (IG) Engine is started Vehicle is driven Shift lever is in P

Auto power off operation occurs (for Automatic Transmission).

Item	Content
Reason for warning	Helpful function
Warning start condition (All conditions are met)	Shift lever is in P Engine is stopped Vehicle is stopped Engine switch is turned on (ACC) or on (IG) Power source control system is turned off by automatic power off function
Warning description	"Auto Power Off to Conserve Battery" is displayed in the multi-information display in the combination meter assembly
Warning stop condition (Either condition is met)	10 seconds have elapsed after the warning started Engine switch is turned on (ACC) or on (IG)

Immobiliser verification completion notification

If the electrical key transmitter sub-assembly touches the engine switch when the transmitter battery in the electrical key transmitter sub-assembly is dead, when there is an entry cancel, or when there is radio wave interference.

Item	Content
Reason for warning	Helpful function
Warning start condition (All conditions are met)	If the key touches the engine switch when the battery in the key is dead, when there is an entry cancel (matching code is detected in vehicle interior)
Warning description	Buzzer in combination meter assembly sounds once (short beep)