System Description [11/2016 - ]

WARNING: This page is about a different variant/trim than selected.

MULTI CHANNEL FUNCTION
1. The electrical key transmitter sub-assembly and electrical key and tire pressure monitoring system receiver assembly can operate on two different RF channels. When an electrical key transmitter sub-assembly is brought within an exterior detection area, key verification begins. If key verification fails due to wave interference, the channel will be switched and key verification will be performed again.
  The multi channel system begins verification using the channel on which the last verification was successfully performed. When verification fails, the system switches to the other channel.

SMART KEY SYSTEM SPECIFICATIONS

Some customers may inquire about the frequency used by the smart key system on various models. The following service information contains the applicable specifications of the smart key system.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Transmitter Detection Area

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	134.2 kHz	94.4 dBuV/m at 3 m	AM	Inside front floor
Outside Vehicle	134.2 kHz	95 dBuV/m at 3 m	AM	Built into door handle
Outside Vehicle	134.2 kHz	95 dBuV/m at 3 m	AM	Built into 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 power switch/depressing brake pedal Opening or closing doors With power switch on (IG) or on (ACC), and shift lever in P, closing a door when the electrical key transmitter sub-assembly cannot be detected inside the vehicle (continues for 3 seconds until the electrical key transmitter sub-assembly is detected or the power switch is turned off) Power switch is off after driving for more than 20 minutes With shift lever not in P, closing a door when the electrical key transmitter sub-assembly cannot be detected inside the vehicle (continues for 3 seconds until the electrical key transmitter sub-assembly is detected)	When electrical key transmitter sub-assembly is not detected inside passenger compartment while car is being driven (transmits for 4 seconds)
Outside Vehicle	(1) When door is locked, transmits at 250 ms intervals (stops when door is unlocked) (2) Does not transmit	(1) Touch the lock sensor (2) Back door opener switch assembly is pressed (3) Touch the unlock sensor in power saving mode	Does not transmit

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 power switch on (IG).
  3. Enter the following menus: Body Electrical / Smart Key, Power Source Control or Starting Control / Trouble Codes.
3. When using the Techstream with the power switch off, connect the Techstream to the DLC3 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 [11/2016 - ]
DIAGRAM OF SMART KEY SYSTEM

Fig 1: Diagram Of Smart Key System (1 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Diagram Of Smart Key System (2 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Diagram Of Smart Key System (3 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Diagram Of Smart Key System (4 Of 4)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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
-	-

DIAGNOSIS IN ACCORDANCE WITH USER OPERATION

Operation 1

Operation

Turn the power 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 (F123-4 (CLG1) - F123-11 (E)*)

*: Refer to TERMINALS OF ECU [11/2016 - ]

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 → Electrical key and tire pressure monitoring system receiver assembly → Certification ECU (smart key ECU assembly) → Main body ECU (multiplex network body ECU)
Expected operation of the vehicle	The electrical key transmitter sub-assembly LED starts blinking. If it does not, check the suspected areas in the following table.
Waveform or Output Value	Pulse generation (F123-4 (CLG1) - F123-11 (E)) Pulse generation (F11-18 (RCO) - F123-11 (E)) Pulse generation (F11-20 (RDAM) - F123-11 (E)) Pulse generation (F11-19 (CSEL) - F123-11 (E))

*: Refer to TERMINALS OF ECU [11/2016 - ]

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 switches 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 front door outside handle assemblies may be malfunctioning. If the electrical key transmitter sub-assembly malfunctions, the hybrid control system cannot be started and the power switch cannot be turned on (ACC or IG). Under normal operation, "ACCESSORY" or "IGNITION ON" is displayed on the multi-information display in the combination meter assembly when the power switch is pressed with the electrical key transmitter sub-assembly in the driver seat area, the shift lever in P and the brake pedal released. 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. If the door cannot be opened, use the mechanical key installed in the electrical key transmitter sub-assembly to open the door.
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 electrical key transmitter sub-assembly LED blinks. If the electrical key transmitter sub-assembly LED does not blink or blinks only once or twice, the transmitter battery may be depleted. If the electrical key transmitter sub-assembly LED does not blink at all, the electrical key transmitter sub-assembly may be malfunctioning. If the transmitter battery voltage at the time the electrical key transmitter sub-assembly sends a signal drops to 2.2 V or less, "Yes" is displayed for "Key Low Battery" in the Data List. If the transmitter battery voltage drops to 2.0 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 hybrid control system cannot be started and the power switch cannot be turned on (ACC or IG). If the electrical key transmitter sub-assembly is held near the power switch, the hybrid control system 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: "Unmatch Code or Form", "No Response", "ID Code Difference" or "Unmatched Vehicle-ID"
Certification ECU (smart key ECU assembly)	-
Main body ECU (multiplex network body ECU)	-
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 (for driver door), but blinks within 0.7 m (2.30 ft.) of the front door outside handle assembly (for front passenger door), the front door outside handle assembly (for driver door) may be malfunctioning. Even if the vehicle exterior detection area is not formed properly, the power switch can be turned on (ACC) and the hybrid control system can be started. Formation of the vehicle exterior detection area can be confirmed by using the Techstream. Refer to OPERATION CHECK [11/2016 - ] Even if the vehicle exterior detection area is not formed properly, the doors can be unlocked by pressing the unlock switch of the electrical key transmitter sub-assembly.
Electrical key and tire pressure monitoring system receiver assembly	If the electrical key and tire pressure monitoring system receiver assembly is malfunctioning, it is not possible to unlock the front passenger door. If the electrical key and tire pressure monitoring system receiver assembly is malfunctioning, it is not possible to unlock the doors by a wireless unlock operation. If the electrical key and tire pressure monitoring system receiver assembly is malfunctioning, the hybrid control system cannot be started and the power 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 [11/2016 - ]
Auxiliary battery is discharged	It may be possible to tell whether the auxiliary battery is discharged by operating the horn.
Others	If the smart key system function has been canceled 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 for 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 in transmitter battery saving mode, even if it receives LF waves from the vehicle, it does not respond using RF waves, therefore the electrical key transmitter sub-assembly LED does not blink. 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.

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 it is not performed, check the suspected areas in the following table.
Waveform or Output Value	Pulse generation (F123-4 (CLG1) - F123-11 (E)) Tester connection (instrument panel junction block assembly (ACT-) - body ground)

*: Refer to TERMINALS OF ECU [11/2016 - ]

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 (for driver door) (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 power switch once with the shift lever in P while not depressing the brake pedal.

Expected operation of the vehicle

The blinking security indicator light goes off, and then the set immobilizer function cancels, allowing the vehicle to be driven.
The steering is unlocked.

If any of the preceding did not happen, check the suspected areas in the following table.HINT: When the power switch is pressed, the indoor electrical key antenna 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 a key ID code upon receiving a request signal and the electrical key transmitter sub-assembly LED illuminates for a short time. After pressing the power 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 "ACCESSORY" is displayed on the multi-information display in the combination meter assembly. After the power source mode has changed, and L code verification has been completed, the steering will be unlocked and the immobilizer will be inactive. The Data List status of "Immobilizer" will then be changed from "Set" to "Unset".Signal transmission: Certification ECU (smart key ECU assembly) → Indoor electrical key antenna → Electrical key transmitter sub-assembly → Electrical key and tire pressure monitoring system receiver assembly → Certification ECU (smart key ECU assembly)HINT: The interior detection area is formed when any of the following conditions are met:

Door is opened.
Within approximately 30 seconds after any of the doors have been opened and closed.
The brake pedal is depressed.
Within approximately 30 seconds after the brake pedal has been depressed.
Right after the power switch is pressed.

Waveform or Output Value

Pulse generation (F11-20 (RDAM) - F123-11 (E)*)
Pulse generation (F123-21 (CLG5) - F123-11 (E)*)
Pulse generation (F9-3 (IG1D) - F123-11 (E)*)

*: Refer to TERMINALS OF ECU [11/2016 - ]

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 antenna assemblies that form the interior detection areas	If the interior detection areas are not formed properly, the hybrid control system cannot be started and the power switch cannot be turned on (ACC or IG). If the electrical key transmitter sub-assembly is held near the power switch in an emergency, the hybrid control system can be started. Using the Techstream, enter 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 [11/2016 - ]
Power switch	Under normal operation, after the power switch is pressed, "ON" is displayed for the Data List items "Start Switch1" and "Start Switch2".
Park/neutral position switch assembly	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 power 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, 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))

Operation 5

Operation	Depress the brake pedal with the shift lever in P while carrying an electrical key transmitter sub-assembly.
Expected operation of the vehicle	The key warning light is displayed on the multi-information display. If it does not, check the suspected areas in the following table.

Suspected Area	Diagnosis
Stop light switch assembly	If the brake pedal is depressed, "ON" is displayed for the Data List item "Stop Light Switch1".
Certification ECU (smart key ECU assembly)	Start function-Terminals of ECU Refer to TERMINALS OF ECU [11/2016 - ]

Operation 6

Operation	After getting into the vehicle while carrying the electrical key transmitter sub-assembly, press the power switch with the shift lever in P while depressing the brake pedal.
Expected operation of the vehicle	The hybrid control system starts. If it does not, check the suspected areas in the following table.

Suspected Area	Diagnosis
Steering lock system	Under normal operation, the steering will be unlocked and "ON" is displayed for the Data List item "Steering Unlock Switch".
Auxiliary battery is discharged	Whether the auxiliary battery is discharged or not can be checked easily by operating the horn.

Operation 7

Operation	Press the power switch.
Expected operation of the vehicle	The hybrid control system stops, the key warning light illuminates and then goes off and the security indicator light changes from off to blinking.

Operation 8

Operation	Open any of the doors with the power switch off.
Expected operation of the vehicle	The steering locks. If it does not, check the suspected areas in the following table.

Suspected Area	Diagnosis
Steering lock system	-
Door courtesy light switch assembly	When the front door LH is opened, "ON" is displayed for the Data List item "FL 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 as the doors are locked.

AUXILIARY BATTERY SAVING FUNCTION
1. When the smart key system is operating, the vehicle performs key detection operations every 0.25 seconds. Therefore, if the vehicle is left as is for a long period of time, the auxiliary battery may become fully discharged. The following controls help reduce the rate at which the auxiliary battery is discharged.
  1. If the smart key system is not operated 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 smart key system is not operated for 14 days or more, the lock and unlock sensors of the door outside handle assembly (for front passenger door) are disabled. Therefore, only the unlock sensor of the front door outside handle assembly (for driver 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 front door outside handle assembly (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 electrical key transmitter sub-assembly, touch the lock or unlock sensor of the front door outside handle assembly (for driver door) and perform a door lock or unlock operation.
  2. Lock or unlock the doors with the wireless operation.
  3. Insert the mechanical key into the door key cylinder of the driver door and lock or unlock the doors.
WIRELESS BUZZER VOLUME ADJUSTMENT FUNCTION
1. The volume of the wireless buzzer can be changed through the customize function.
  HINT:
  
  The volume of the following wireless buzzer operations cannot be adjusted.
  - Warning function buzzer operations
  - Customize function buzzer operations
  - Buzzer operations for key diagnostic mode using the Techstream
  - Key registration buzzer operations

WARNING FUNCTION

Warning

Situation: The hybrid control system is left starting and the shift lever is in a position other than P when the driver gets out of the vehicle.

There are 2 patterns for this situation.

Pattern 1:

When the hybrid control system is left starting and the shift lever is in a 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 Start Condition (All conditions are met)	The power switch is on (ACC) or on (IG). The shift lever is in a position other than P. The driver door is opened. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds continuously. "Shift to P position when parked"* is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	The power switch is turned off. The shift lever is in P. The driver door is closed. The vehicle speed is 5 km/h (3 mph) or more.

Pattern 2:

Under the situation of pattern 1, the driver closes the door and attempts to leave the vehicle while holding the electrical key transmitter sub-assembly.

In this situation, the following control is performed:

Possible effects without warning	Sudden vehicle start, vehicle theft, vehicle roll-away
Warning Start Condition (All conditions are met)	The power switch is on (ACC) or on (IG). The shift lever is in a position other than P. The driver door is opened → closed. The electrical key transmitter sub-assembly is not in the vehicle. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds continuously. The wireless buzzer sounds continuously. "Shift to P position when parked" (A) and "Key not detected" (B) are displayed alternately on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	Warning stop conditions for (A) The shift lever is in P. The vehicle speed is 5 km/h (3 mph). Warning stop conditions for (B) The power switch is turned off. The electrical key transmitter sub-assembly is returned to the vehicle.

Situation: The key reminder sounds.

There are 3 patterns for this situation.

Pattern 1:

When the shift lever is in P and the steering is unlocked, 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	Vehicle theft
Warning Start Condition (Warning starts when condition 1 is met or condition 2 is met for 1 second)	Condition 1 The power switch is on (ACC). The driver door is opened.
	Condition 2 The power switch is off. The steering is unlocked. The driver door is opened.
Warning description	The buzzer in the combination meter assembly sounds continuously at short and even intervals.
Warning Stop Condition (One condition is met)	The power switch is turned on (IG). The driver door is closed. The power switch is turned off and the steering is locked.

Pattern 2:

Under the situation of pattern 1, the driver closes the driver door and attempts to leave the vehicle while carrying the electrical key transmitter sub-assembly.

In this situation, the following control is performed:

Possible effects without warning	Vehicle theft
Warning Start Condition (All conditions are met)	The power switch is on (ACC) or on (IG). The shift lever is in P. The driver door is opened → closed. The electrical key transmitter sub-assembly is not in the vehicle. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds once. The wireless buzzer sounds 3 times. "Key not detected" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	The power switch is turned off. The electrical key transmitter sub-assembly is returned to the vehicle.

Pattern 3:

Under the situation of pattern 2, the driver touches the lock sensor on a front door outside handle assembly.

In this situation, the following control is performed:

Possible effects without warning	Vehicle theft, hybrid control system cannot be restarted, discharged auxiliary battery
Warning Start Condition (All conditions are met)	The power switch is on (ACC) or on (IG). The shift lever is in P. The electrical key transmitter sub-assembly is not in the interior detection areas. The electrical key transmitter sub-assembly is in the exterior detection areas. The lock sensor is on. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds once. The wireless buzzer sounds continuously. "Turn Power OFF" (A) and "Key not detected" (B) are displayed alternately on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	5 seconds have elapsed after the warning started (only wireless buzzer stops). Any door is opened (only wireless buzzer stops). Any door is closed (only wireless buzzer stops). Warning stop conditions for (A) 60 seconds have elapsed after the warning started. The power switch is off. The shift lever is in a position other than P. The vehicle speed is 5 km/h (3 mph). Warning stop conditions for (B) The power switch is off. The electrical key transmitter sub-assembly is returned to the vehicle.

Situation: A passenger gets out of the vehicle while carrying the electrical key transmitter sub-assembly.

When the power switch is on (ACC) or on (IG), a passenger opens a door other than the driver door and attempts to get out of the vehicle while holding the electrical key transmitter sub-assembly).

In this situation, the following control is performed:

Possible effects without warning	Hybrid control system cannot be restarted
Warning Start Condition (All conditions are met)	The power switch is on (ACC) or on (IG). A door other than the driver door is opened → closed. The electrical key transmitter sub-assembly is not in the vehicle. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds once. The wireless buzzer sounds 3 times. "Key not detected" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	The power switch is turned off. The electrical key transmitter sub-assembly is returned to the vehicle.

Situation: The electrical key transmitter sub-assembly is not in the interior or exterior detection areas.

The driver attempts to turn the power switch on (IG) when the electrical key transmitter sub-assembly is not in the cabin, or attempts to change the power source mode by touching the electrical key transmitter sub-assembly to the power switch.

In this situation, the following control is performed:

Possible effects without warning	Confuses the user
Warning Start Condition (All conditions are met)	The immobilizer system is set. The electrical key transmitter sub-assembly is not in the vehicle or the transmitter battery is depleted. (Interior verification failed or verification failed when the transmitter battery is depleted and the electrical key transmitter sub-assembly was touched to the power switch.) There is no history of unlocking the doors using the mechanical key and no history of verification failure when the power switch is pressed.
Warning description	The buzzer in the combination meter assembly sounds once. "Key not detected" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	15 seconds have elapsed after the warning started. The electrical key transmitter sub-assembly is returned to 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 power switch.) The driver door is opened using the door outside handle and 30 seconds have elapsed.

Situation: The vehicle is driven without a registered electrical key transmitter sub-assembly.

In this situation, the following control is performed:

Possible effects without warning	Hybrid control system cannot be restarted
Warning Start Condition (All conditions are met)	The power switch is on (IG). Warning for when a passenger gets out of the vehicle while carrying the electrical key transmitter sub-assembly is operating. The vehicle speed is 5 km/h (3 mph) or more. The electrical key transmitter sub-assembly is not in the vehicle.
Warning description	The buzzer in the combination meter assembly sounds nine times. "Key not detected" is displayed on multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	The power switch is turned off. The electrical key transmitter sub-assembly is returned to the vehicle.

Situation: The electrical key transmitter sub-assembly is left in the vehicle.

The lock sensor on a door outside handle assembly is touched to perform entry lock with the electrical key transmitter sub-assembly left in the vehicle.

In this situation, the following control is performed:

Possible effects without warning	Vehicle theft
Warning Start Condition (All conditions are met)	The power switch is off. All doors are closed. The electrical key transmitter sub-assembly is in the vehicle. The lock sensor on a front door outside handle assembly is on (touched). Any door is unlocked. No vehicle speed is detected.
Warning description	The wireless buzzer sounds continuously. "Key detected in vehicle" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	5 seconds have elapsed after the wireless buzzer is activated (only wireless buzzer stops). The power switch is on (ACC) or on (IG). The vehicle speed is 5 km/h (3 mph) or more. Any door is opened (only wireless buzzer stops). Lock operation is detected. 60 seconds have elapsed after the wireless buzzer is activated.

Situation: Door is ajar.

The lock sensor on the front door outside handle assembly is touched to perform entry lock with a door open.

In this situation, the following control is performed:

Possible effects without warning	Vehicle theft
Warning Start Condition (All conditions are met)	The power switch is off. Any door other than the door that performed the entry lock operation is open. The lock sensor is on or lock switch is pressed on the electrical key transmitter sub-assembly. The electrical key transmitter sub-assembly is in an exterior detection area.
Warning description	The wireless buzzer sounds continuously.
Warning Stop Condition (One condition is met)	5 seconds have elapsed after the wireless buzzer is activated. The power switch is on (ACC) or on (IG). All doors are closed. The doors are unlocked by a wireless door unlock operation. The doors are unlocked by operating the entry unlock function.

Situation: The electrical key transmitter sub-assembly is locked inside the vehicle.

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

In this situation, the following control is performed:

Possible effects without warning	Vehicle theft
Warning Start Condition (All conditions are met)	With a door open, the lock knob is locked and then the door is closed with the front door outside handle assembly being pulled. The electrical key transmitter sub-assembly is in the vehicle. No vehicle speed is detected.
Warning description	The buzzer in the combination meter assembly sounds once. The wireless buzzer sounds continuously. "Key detected in vehicle" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	5 seconds have elapsed after the wireless buzzer is activated (only wireless buzzer stops). 60 seconds have elapsed after the warning started The power switch is turned to a mode other than off. Any door is opened (only wireless buzzer stops). Lock operation is detected. The vehicle speed is 5 km/h (3 mph) or more.

Situation: The transmitter battery is weak.

The vehicle is driven using an electrical key transmitter sub-assembly that has a low transmitter battery.

In this situation, the following control is performed:

Possible effects without warning	Depleted transmitter battery, hybrid control system cannot be restarted
Warning Start Condition (Either Condition 1 or 2 is met)	Condition 1 The power switch is turned off after being left on (IG) for more than 20 minutes. The transmitter battery voltage is low. The electrical key transmitter sub-assembly is in the vehicle. No vehicle speed is detected.
Warning Start Condition (Either Condition 1 or 2 is met)	Condition 2 the hybrid control system is off → the hybrid control system is started. The transmitter battery voltage is low. The electrical key transmitter sub-assembly is in the vehicle. No vehicle speed is detected. Condition 1 has been met (past).
Warning description	The buzzer in the combination meter assembly sounds once. "Key Battery Low" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	15 seconds have elapsed after the warning started The vehicle speed is 5 km/h (3 mph) or more.

Situation: The steering cannot be unlocked.

The steering cannot be unlocked, thus the hybrid control system is prevented from starting.

The shift lever is moved to a position other than P before the steering is unlocked.

In this situation, the following control is performed:

Possible effects without warning	User does not notice that the steering is locked
Warning Start Condition	Steering cannot be unlocked (judged by the steering lock ECU (steering lock actuator assembly)).
Warning description	The buzzer in the combination meter assembly sounds once. "Steering Lock active" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	15 seconds have elapsed after the warning started. The steering is unlocked.

Situation: The smart key system is malfunctioning.

A malfunction that interferes with the steering lock ECU (steering lock actuator assembly) or a vehicle speed signal malfunction is detected.

In this situation, the following control is performed:

Possible effects without warning	Malfunction cannot be detected
Warning Start Condition (One condition is met)	The steering lock ECU (steering lock actuator assembly), driver of the certification ECU (smart key ECU assembly) or unlock detection switch is malfunctioning. The vehicle speed is judged as abnormal or vehicle speed signal communication is malfunctioning.
Warning description	The buzzer in the combination meter assembly sounds once. "Check Smart Key System" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	15 seconds have elapsed after the warning started. The system returns to normal.

Situation: The hybrid control system does not start. (Situation A)

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

In this situation, the following control is performed:

Possible effects without warning	Hybrid control system cannot be restarted
Warning Start Condition (One condition is met)	The immobilizer system is set. The electrical key transmitter sub-assembly is not in the vehicle. Key code verification error occurs when the power switch is pressed twice or the driver door key-linked unlock operation is performed.
Warning description	The buzzer in the combination meter assembly sounds once. "Depress brake pedal, touch power switch with key" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	60 seconds have elapsed after the warning started. The 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 power switch.) The driver door is opened using the door outside handle and 30 seconds have elapsed.

Situation: Immobilizer system certification completion occurs.

When the transmitter battery is depleted, the smart key system is canceled or wave interference occurs, the electrical key transmitter sub-assembly is touched to the power switch.

In this situation, the following control is performed:

Possible effects without warning	Malfunction cannot be detected
Warning Start Condition	Electrical key transmitter sub-assembly certification result is OK.
Warning description	The buzzer in the combination meter assembly sounds once. "Depress brake pedal and push power switch to start" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	10 seconds have elapsed after the warning started. The electrical key transmitter sub-assembly is detected by the vehicle. The hybrid control system started. The vehicle can be driven. The immobilizer system is set and key recognition is stopped or the key cannot be recognized.

Situation: The hybrid control system does not start. (Situation B)

There are two patterns for this situation.

Pattern 1:

The hybrid control system might be started (when the driver gets in the vehicle, or the power switch is turned on (ACC)).

In this situation, the following control is performed:

Possible effects without warning	Hybrid control system cannot be restarted
Warning Start Condition (Either condition is met)	After the doors are unlocked from outside the vehicle with the power switch off, the driver door is opened. With the brake pedal released, the power switch is turned on (ACC).
Warning description (Not displayed while the opening image is displayed.)	"Depress brake pedal and push power switch to start" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	20 seconds have elapsed after the warning started. The hybrid control system started. The doors are locked from outside the vehicle. The doors are locked by a wireless door lock operation from inside the vehicle.

Pattern 2:

The hybrid control system might be started (when the power switch is on (IG)).

In this situation, the following control is performed:

Possible effects without warning	Hybrid control system cannot be restarted
Warning Start Condition (Either condition is met)	With the shift lever in P and the brake pedal released, the power switch is turned on (IG) (the hybrid control system is not started). The power switch is on (IG) (the hybrid control system is not started) and the shift lever is moved from a position other than P to P.
Warning description	"DEPRESS BRAKE PEDAL AND PUSH POWER SWITCH TO START"1 or "Depress brake pedal and push power switch to start"2 is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (One condition is met)	The power source mode is changed to any mode other than on (IG). The vehicle speed is 5 km/h (3 mph) or more. The shift lever is moved to a position other than P.

*1: w/ Multi-information Display (Monochrome Type)
*2: w/ Multi-information Display (Color Type)

Situation: The power switch cannot be turned off.

There are 2 patterns for this situation.

Pattern 1:

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

In this situation, the following control is performed:

Possible effects without warning	Discharged auxiliary battery, vehicle roll-away
Warning Start Condition	The power switch is turned off with the shift lever in a position other than P. (Excluding an emergency stop by pressing the power switch 3 times quickly or pressing and holding the power switch for 2 seconds or more.)
Warning description	The buzzer in the combination meter assembly sounds once. "Shift to P position when parked" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	The shift lever is moved to P. The power switch is turned to a mode other than on (ACC).

Pattern 2:

Under the situation of pattern 1, the shift lever is moved to P.

In this situation, the following control is performed:

Possible effects without warning	Discharged auxiliary battery, vehicle roll-away
Warning Start Condition	The shift lever is moved to P.
Warning description	The buzzer in the combination meter assembly sounds once. "Turn Power OFF" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	The power source mode is changed to a mode other than on (ACC). The shift lever is in any position other than P.

Situation: Auto power off operation occurs.

A warning message appears on the multi-information display when automatic power off operation occurs.

In this situation, the following control is performed:

Possible effects without warning	Discharged auxiliary battery
Warning Start Condition (All conditions are met)	The shift lever is in P. The power switch is on (ACC) or on (IG). No vehicle speed is detected and the hybrid control system is stopped. The power source control system is turned off by automatic power off function. (20 minutes have elapsed with the power switch on (ACC) or 1 hour has elapsed with the power switch on (IG).)
Warning description	"Auto Power OFF to Conserve Battery" is displayed on the multi-information display in the combination meter assembly.
Warning Stop Condition (Either condition is met)	10 seconds have elapsed after the warning started. The power switch is turned on (ACC) or on (IG).