System Description

• For the system to be able to detect the location of the smart key, the vehicle doors must be locked. The door oscillators transmit key detection signals at prescribed intervals in order to form vehicle exterior detection areas (0.7 to 1.0 m (2.3 to 3.3 ft) around each front outside door handle).
• When the smart key is brought into a detection area, the system automatically checks the key's ID code. When this is completed, the door that has detected the smart key assumes the unlock standby condition in accordance with the prescribed unlock mode. In this condition, if the touch sensor on the outside door handle is touched, the door(s) unlock(s).

HINT:

*: This is the default setting. The smart unlock mode can be changed by pressing the LOCK and PANIC switches on the smart key for approximately 5 seconds. For details, See CUSTOMIZE PARAMETERS  .

Fig 3: Smart Entry System Flow Diagram (Smart Unlock)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• With all doors locked, if the back door opener switch is pressed with the smart key in the user's possession, the luggage electrical key oscillator (outer) outputs a smart key detection signal and the smart key ECU checks the ID code. After the check is completed, the smart key ECU unlocks* the back door via the multiplex network body ECU. At this time, if the user continues to press the back door opener switch, the back door lock latch will be released.

HINT:

*: If smart unlock is set to individual door unlock mode, only the back door will be unlocked. If set to all door unlock mode or driver's door unlock mode (default setting), all doors will be unlocked.

Fig 4: Smart Entry System Flow Diagram (Smart Back Door Unlock)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• When the smart key is located outside of the vehicle and all the doors are closed, if the user presses the trigger switch on the outside door handle or the trigger switch on the back door, the smart key ECU will actuate all oscillators and start checking for the ID code of a smart key.
• At this time, if an oscillator outside of the vehicle (driver's/front passenger's door electrical key oscillator or luggage electrical key oscillator (outer)) determines that the ID code of the smart key is legitimate, the smart key ECU determines that the smart key has been taken outside the vehicle and locks the doors via the multiplex network body ECU.
• A smart unlock operation will not be authorized for approximately 3 seconds* after the doors have been locked.

HINT:

*: The setting of this duration can be changed using the customize function. For details, See CUSTOMIZE PARAMETERS  .

Fig 5: Smart Entry System Flow Diagram (Smart Lock)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OFF --> ON (ACC) --> ON (IG)

• If the driver presses the power switch once without depressing the brake pedal, the indoor electrical key oscillator, in accordance with the request signal received from the smart key ECU, forms a smart key detection area inside the vehicle by emitting smart key detection signals. Accordingly, the smart key sends an ID code signal to the smart key ECU via the door control receiver. The smart key ECU checks the ID code of the smart key and transmits the check results to the transponder key ECU.
• The transponder key ECU transmits the check results to the power source control ECU. If the check results reveal that the ID code is legitimate, the power source control ECU will turn on the ACC relay and start the ACC power supply. At this time, the power source control ECU illuminates a green indicator lamp on the power switch in order to inform the driver of the ON (ACC) status.
• After the transition to the ON (ACC) status, if the driver presses the power switch again, the power source control ECU will turn on the IG1 and IG2 relays and start the IG power supply. At this time, the power source control ECU illuminates an amber indicator lamp on the power switch in order to inform the driver of the ON (IG) status.
  Fig 6: Smart Entry System Flow Diagram (Smart Ignition)

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OFF --> ON (READY)

• If the driver presses the power switch once while depressing the brake pedal, the indoor electrical key oscillator, in accordance with the request signal received from the smart key ECU, forms a smart key detection area inside the vehicle by emitting smart key detection signals. Accordingly, the smart key sends an ID code signal to the smart key ECU via the door control receiver.
• The smart key ECU checks the ID code of the smart key and transmits the check results to the transponder key ECU.
• The transponder key ECU transmits the check results to the power source control ECU. If the check results reveal that the ID code is legitimate, the power source control ECU will turn on the ACC, IG1 and IG2 relays and start the ACC and IG power supply.
• At this time, the power source control ECU illuminates an amber indicator lamp on the power switch in order to inform the driver of the ON (IG) status.
• After the indicator lamp has illuminated, the power source control ECU transmits a hybrid system start request signal to the hybrid vehicle control ECU.
• Upon receiving this signal, the hybrid vehicle control ECU verifies the check results of the smart key ID code provided by the transponder key ECU.
• If the check results reveal that the ID code is legitimate, the hybrid vehicle control ECU starts the hybrid system.
• At this time, the power source control ECU will turn off the indicator lamp on the power switch in order to inform the driver of the ON (READY) status.

Fig 7: Smart Entry System Flow Diagram (Off --> On (Ready))

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• General

The smart entry system is equipped with a warning function to prevent problems resulting from errors in smart key usage. The smart entry system works without any requirements other than having the key in one's possession. The user, as a result, may become unaware of the presence or location of the key and make errors (listed below) that could lead to serious problems.

EXAMPLES: 

1. The driver is unaware that the key has been taken out of the vehicle by a passenger.
2. The driver exits the vehicle with the hybrid system running.
3. The driver exits the vehicle with the shift position not P.

If the above situations occur, the hybrid system may be unable to be started once it has been turned off, the vehicle may be stolen, or other problems may follow. Warning function descriptions for several smart key usage errors are below.

1. Warning against the driver taking the smart key outside the vehicle with its shift position in P:
   Fig 8: Warning Function Chart (Shift Position In P)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Warning against the driver taking the smart key outside the vehicle while the shift position is not P:
   Fig 9: Warning Function Chart (Shift Position Is Not In P)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Warning against a passenger taking the smart key outside the vehicle:
   Fig 10: Warning Function Chart (1 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Warning against operating the smart lock while the hybrid system is in operation:
   Fig 11: Warning Function Chart (2 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Warning against operating the door lock while the smart key remains in the vehicle:
   Fig 12: Warning Function Chart (3 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Warning against low battery of the smart key:
   Fig 13: Warning Function Chart (4 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Warning against operating the smart ignition outside the detection area of the indoor electrical key oscillator:
   Fig 14: Warning Function Chart (5 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Warning against operating the door lock while any of the doors is open:
   Fig 15: Warning Function Chart (6 Of 6)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• When the power switch is OFF, and the smart key's LOCK switch and PANIC switch remain pressed for approximately 5 seconds, the smart unlock mode can be changed between the following: individual door unlock, driver's door unlock, all doors unlock and individual door unlock.
• The wireless door lock buzzer informs the user of the smart unlock mode. Refer to the chart below.
  Fig 16: Smart Unlock Mode Selector Function Chart

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

• When the doors are locked, the door electrical key oscillators emit signals to the outside of the vehicle at default intervals of 0.3 seconds. To avoid depleting the auxiliary battery, the system has a power saving function whereby: 1) after 5 days without a response from the smart key, the system extends door electrical key oscillator signal intervals to 0.6 seconds.; and 2) after 14 days without a response from the smart key, the system deactivates the smart entry system.
• When the doors are locked and the smart key is located within the vehicle exterior detection area, the smart key and door electrical key oscillators are maintaining communication and using power. To avoid depleting the smart key battery and auxiliary battery, if the smart key is located within the vehicle exterior detection area for longer than 10 minutes, the system deactivates the smart entry system.

Refer to the chart below for information on how to reinstate the smart entry system.

Fig 17: Smart Entry System Reinstatement Condition

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Functions and operating ranges:

   The functions will not operate if the smart key is not present within the detection areas described below. Furthermore, the functions may not operate or their operating range may decrease if the battery is depleted or in the presence of strong radio waves or noise. There are also areas in which the functions may not operate properly due to the shape of the vehicle body.

   • Smart lock and smart unlock:

     Applicable within approximately 0.7 to 1.0 m (2.3 to 3.3 ft) radius of each front outside door handle. However, this function may not operate near the windows or outside door handles.

   • Smart ignition:

     Applicable within vehicle interior. This function may not operate if the smart key is placed on the instrument panel, on the rear tray, in the glove box, or on the floor. If the smart key is placed outside of the vehicle, this function may not operate if the smart key is placed near a window.

   • Smart back door unlock:

     Applicable within approximately 0.7 to 1.0 m (2.3 to 3.3 ft) radius of the back door opener switch. However, this function may not operate if the smart key is placed near the center of the rear bumper.

2. The smart entry system uses very faint radio waves:

   The smart functions and the wireless door lock remote control functions may not operate properly (unable to operate the smart lock, unlock, ignition, and back door unlock functions, or a false alarm is issued) in the situations described below. In this case, use the enclosed mechanical key to lock or unlock the driver's door and insert the smart key into the key slot to start the hybrid system.

   • The presence of a facility that generates strong radio waves nearby, such as a TV tower, electric power plant, or broadcasting station.
   • The user has a wireless communication device such as a wireless transmitter or portable telephone along with the smart key.
   • The smart key is covered with a metal object or is placed near a metal object.
   • A radio wave type wireless door lock remote control is being used in the vicinity.
   • When placing the smart key near electrical appliances.

The smart function will not operate under the conditions listed below.

• The smart key cancel switch provided below the driver's side instrument panel is turned ON.
• The smart key is inserted into the key slot.
• The smart key has no battery (the indicator lamp does not flash even if the buttons on the smart key are pressed).