CAUTION:
If using a pacemaker, be sure to read the manual of the pacemaker before using the key, as the radio waves of the key may affect the pacemaker.
SMART ENTRY AND START SYSTEM DESCRIPTION
In addition to conventional mechanical key and wireless door lock control functions, the smart entry and start system enables door locking/unlocking, steering lock releasing and engine starting without operating the key. The only requirement is that the key is in the user's possession.
This system is controlled by the certification ECU (smart key ECU assembly). When the certification ECU (smart key ECU assembly) detects the presence of the smart entry and start system in one of the detection areas, it identifies and checks the ID code, and outputs operation signals to the related ECU in accordance with their functions.
The detection areas are formed by 6 oscillators (2 door oscillators, 1 outside oscillator and 3 cabin oscillators).
DETECTION AREA
Precautions for the entire system:
Be sure to carry the key during inspection of the smart entry and start system.
As weak radio waves are used to detect the key, the key detection area may decrease, or the key may not be detected correctly in the following situations:
The key battery is depleted.
Any facilities that generate strong radio waves, such as a TV tower, power plant, broadcast station or gas station, are located near the inspection site.
A wireless device, such as a cellular phone, is carried with the key.
The key is in contact with or covered with metal.
Another wireless door lock control function is operated near the vehicle.
The key is located near a device that generates high voltage or noise.
The key may be difficult to operate for a reason relating to the vehicle body shape.
The key may not be detected correctly if it is around the vehicle's windows, the door handle or center of the bumper even when it is in the detection area outside the vehicle.
The key may not be detected correctly if it is on the instrument panel, rear package tray, floor or in the glove box even when it is in the detection area inside the vehicle.
The key may not operate if the key is not held properly.
The smart entry and start system does not operate in the following conditions:
The smart entry and start system is canceled.
The key battery is completely depleted (the indicator does not blink when pushing any of the buttons on the key).
FUNCTION OF MAIN COMPONENTS
| Component | Function |
|---|---|
| Key | Consists of mechanical key, transmitter for wireless door lock control and transceiver for smart entry and start system |
| Certification ECU (Smart Key ECU assembly) | Controls smart entry and start system in accordance with signals from each oscillator, various switches, ECUs and key
|
| ID Code Box (Immobiliser Code ECU) | Receives steering unlock or engine immobiliser unset signals from certification ECU (smart key ECU assembly), certifies them, and transmits unset signals to steering lock ECU (steering lock actuator assembly) or ECM |
| Main Body ECU | Controls push button start function in accordance with signals from various switches, ECUs and combination meter
|
| Front Door Outside Handle Assembly (for Driver, Front Passenger Side) (antenna) | Transmits request signals |
| Front Door Outside Handle Assembly (for Driver, Front Passenger Side) (touch sensor) | Detects when person touches inside of outside handle |
| Front Door Outside Handle Assembly (for Driver, Front Passenger Side) (lock switch) | Transmits door lock request signals to certification ECU (smart key ECU assembly) |
| Door Electrical Key Oscillator (for Driver, Front Passenger Side) | Receives request signal from certification ECU (smart key ECU assembly), and forms detection area around each door |
| Indoor Electrical Key Oscillator (for Front, Center and Rear Floor) | Receives request signal from certification ECU (smart key ECU assembly), and forms detection area in vehicle interior |
| Outside Electrical Key Oscillator (for Rear Side) | Receives request signal from certification ECU (smart key ECU assembly), and forms detection area around back door |
| Door Control Receiver |
|
| Outside Rear View Mirror
|
When key enters exterior detection area, foot light is illuminated in accordance with request signal of certification ECU (smart key ECU assembly) |
| Back Door Opener Switch Assembly
|
Transmits a back door open request signal to the main body ECU |
| Back Door Opener Switch Assembly
|
Transmits a back door lock request signal to the certification ECU (smart key ECU assembly) |
| Stop Light Switch | Outputs state of brake pedal to main body ECU |
| Wireless Door Lock Buzzer
|
When certification ECU (smart key ECU assembly) detects human errors such as those below, it warns driver by sounding wireless door lock buzzer* and displaying information in accordance with request signal from ECU Example:
|
*: w/ Wireless Buzzer Function
CONSTRUCTION AND OPERATION
Key
The key consists of a mechanical key, a transmitter function for the wireless door lock control and a transceiver for the smart entry and start system.
The transceiver function for the smart entry and start system receives the signals from the oscillators and sends the ID code to the tuner.
The transmitter function for the wireless door lock control has a LOCK switch, UNLOCK switch, POWER SLIDE DOOR LH/RH switches and POWER BACK DOOR switch*.
*: w/ Power Back Door System
This mechanical key works for the driver door and glove box, but cannot start the engine.
A total of 7 keys can be registered.
Oscillator (each door electrical key oscillator, indoor electrical key oscillator (for front, center and rear floor) and outside electrical key oscillator (for rear side))
Each oscillator transmits the request signal received from the certification ECU (smart key ECU assembly), and forms a key detection area to detect the presence of a key. The detection area formed by each door electrical key oscillator and outside electrical key oscillator (for rear side) is approximately 0.7 to 1.0 m (2.30 to 3.28 ft.) from the outside handle of each door or the center of the rear bumper.
The detection area of each door electrical key oscillator is formed by transmitting a request signal every 0.25 seconds while the engine switch is off and each door is locked. In this way, the oscillator detects the proximity of a key. During entry lock, the detection area is formed with the lock switch on.
The detection area of the outside electrical key oscillator (for rear side) is formed when the back door opener switch assembly is on.
The detection area of the indoor electrical key oscillator (for front, center and rear floor) is formed when any door is opened or closed, during engine start, when a warning is activated, or when the lock switch is on.
ENTRY FUNCTION OPERATION
The smart entry and start system has the following functions:
| Function | Outline |
|---|---|
| Mechanical Key | Operation is the same as conventional mechanical key. |
| Wireless Door Lock Control | This function remotely locks and unlocks all doors. Operation is the same as wireless door lock control system. However, the receiver in certification ECU (smart key ECU assembly) uses entry door control receiver to control locking and unlocking. |
| Entry Illumination | When person carrying key enters detection area, door will enter unlock standby mode and front map light will illuminate. |
| Entry Unlock | When key is located in detection area of door electrical key oscillator, door will unlock by touching inside of door outside handle assembly. |
| Entry Lock |
|
| Entry Back Door Open | When a key is in an exterior actuation area of the outside electrical key oscillator (for rear side), the back door opens manually by simply pressing the back door opener switch assembly (opener switch). |
| Memory Call | This function operates driving position memory system in accordance with key ID code. |
| Key Lock-in Prevention | This function prevents confinement of key if door is locked using door outside handle assembly while key is still inside vehicle. |
| Warning | When any of situations below occur, smart entry and start system causes certification ECU (smart key ECU assembly) to sound buzzer*1 in combination meter and wireless door lock buzzer, and illuminate information in order to alert driver.
|
| Battery Saving | If key is constantly located within actuation area of door electrical key oscillator, system maintains periodic communication with key. Therefore, if vehicle remains parked in that state for a long time, key battery and vehicle battery could be drained. For this reason, vehicle controls system to reduce drain on battery. |
| Key Cancel Click here |
Following key functions can be cancelled by performing certain operations:
|
| Key Code Registration | A total of 7 keys can be registered. This function enables the registration (writing and storing) of transmitter recognition codes in the EEPROM that is contained in the certification ECU (smart key ECU assembly). |
*1: w/ Wireless Buzzer Function
*2: w/ Door Ajar Warning
WIRELESS DOOR LOCK CONTROL SYSTEM FUNCTION
Push the LOCK/UNLOCK/POWER SLIDE DOOR LH/POWER SLIDE DOOR RH/POWER BACK DOOR* switch on the key to operate each function. For details, Click here.
*: w/ Power Back Door System
ENTRY UNLOCK FUNCTION
The detection area is formed by communication between a door electrical key oscillator and certification ECU (smart key ECU assembly) when the door is locked in order to detect access of a person carrying the key.
When a person carrying the key enters the detection area around the vehicle, the matching of the ID codes for a door electrical key oscillator and the key will automatically be performed. After the matching is completed, the door will enter unlock standby mode.
In unlock standby mode, the antenna built into the outside handle starts sensing. If the outside handle is held (the inside of the door outside handle is touched), the door unlock operation will be performed. At this time, the hazard warning lights blink twice and the wireless door lock buzzer* sounds twice.
If any of the doors are not opened after a door unlock operation, all doors will automatically lock after 30 seconds.
*: w/ Wireless Buzzer Function
ENTRY LOCK FUNCTION
After leaving the vehicle carrying the key, push the lock switch on the outside handle assembly or back door opener switch assembly when all doors are closed.
The certification ECU (smart key ECU assembly) determines whether the key is located inside or outside the cabin based on the information from a door electrical key oscillator or outside electrical key oscillator, and indoor electrical key oscillator. Then matching of the ID codes is performed.
When the matching result shows that the ID codes of the key and indoor electrical key oscillator do not match and the ID codes of the key, and door electrical key oscillator or outside electrical key oscillator match, the door lock function will operate. At this time, the hazard warning lights blink once and the wireless door lock buzzer* sounds once.
If the key is located inside the cabin, the door lock function will not operate and the alarm buzzer* (beep sound) will sound for 2 seconds.
*: w/ Wireless Buzzer Function
ENTRY BACK DOOR OPEN FUNCTION
Stand in front of the back door with the key and push the back door opener switch assembly (opener switch) to start the matching of the ID codes for the outside electrical key oscillator (for rear side). If the ID codes match, the back door open operation will be performed.
PREVENTION OF KEY CONFINEMENT FUNCTION
If you attempt to lock the door through keyless operation (move the lock knob to the lock position and then close the door while holding the handle open) with the key in the cabin, the system determines that the key is located inside the cabin and unlocks the door.
ENTRY ILLUMINATION FUNCTION
When a person carrying the key enters the detection area, the door will enter unlock standby mode and the front map light will illuminate.
Tech Tips
The entry illumination function operates when the key enters the vehicle exterior detection area from outside the detection area. If the key does not remain out of the detection area for 3 seconds or more, the illumination function does not operate.
ENTRY POWER WINDOW FUNCTION (REMOTE FUNCTION) (DOOR WINDOW)
Pressing the front door handle (lock switch) for 3 seconds or more operates the door window close operation of all windows.
If the entry power window function is operating and the front door handle (lock switch) is released, the entry power window operation will stop.
MEMORY CALL FUNCTION
When the engine switch is off and the driver door courtesy light is off, opening the door will operate the memory call function (the seat will move to a previously recorded driving position). Using the key, memory call, key registration and key cancellation can be performed.
WARNING FUNCTION
General
When any of the situations below occur, the smart entry and start system causes the certification ECU (smart key ECU assembly) to sound the buzzer in the combination meter and the wireless door lock buzzer*, and illuminate the combination meter multi-information display in order to alert the driver.
| Warning Function Operation Condition | Situation |
|---|---|
| Shift lever is not in P and power source mode is not off. | A |
| Shift lever is in P and power source mode is not off. | B |
| Occupant leaves with the key. | C |
| Engine switch is operated while the key is outside the detection area. | D |
| Entry lock is operated while the key is inside the cabin.* | E |
| Key battery is weak. | F |
| Key reminder sounds. | G |
| Door is ajar.* | H |
| Steering lock does not release. | I |
| Steering lock mechanism is malfunctioning. | J |
| Main body ECU is malfunctioning. | K |
| Engine start method is displayed. | L |
| Emergency operation support (a backup function is used). | M |
*: w/ Door Ajar Warning
Situation A
There are 2 patterns for situation A.
Pattern 1: When the engine is left running and the shift lever is in a position other than P, the driver opens the door and attempts to get out of the vehicle.
Pattern 2: Under the condition of pattern 1, the driver closes the door and attempts to leave the vehicle carrying the key.
In these situations, the following control is performed:
Pattern 1
| Possible Effects without Warning | Sudden vehicle start, vehicle theft, vehicle roll-away |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Continuous sound |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly:
|
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
Pattern 2
| Possible Effects without Warning | Sudden vehicle start, vehicle theft, vehicle roll-away |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Continuous sound |
| Combination Meter Assembly
|
Warning: Information below is displayed alternately on the combination meter assembly:
The "Shift to P Range" warning is stopped when one of the following conditions is met:
The "Key is not Detected" warning is stopped when either of the following conditions is met:
|
| Combination Meter Assembly
|
Flashes |
| Wireless Door Lock Buzzer* | Warning: Continuous sound The warning is stopped when one of the following conditions is met:
|
*: w/ Wireless Buzzer Function
Situation B
There are 2 patterns for situation B.
Pattern 1: When the engine is left running and the shift lever is in P, the driver closes the driver door and attempts to leave the vehicle carrying the key.
Pattern 2: Under the condition of pattern 1, the driver presses the lock switch on the door outside handle assembly.
In these situations, the following control is performed:
Pattern 1
| Possible Effects without Warning | Vehicle theft, engine cannot be restarted, discharged battery |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Sounds once |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly:
|
| Combination Meter Assembly
|
Flashes |
| Wireless Door Lock Buzzer* | Warning: Sounds 3 times |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when either of the following conditions is met:
|
*: w/ Wireless Buzzer Function
Pattern 2
| Possible Effects without Warning | Vehicle theft, discharged battery |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly:
|
| Wireless Door Lock Buzzer* | Warning: Sounds for 60 seconds |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
*: w/ Wireless Buzzer Function
Situation C
When the engine is left running, a passenger leaves the vehicle carrying the key.
In this situation, the following control is performed:
| Possible Effects without Warning | Engine cannot be restarted |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Sounds once |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly:
|
| Wireless Door Lock Buzzer* | Warning: Sounds 3 times |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
*: w/ Wireless Buzzer Function
Situation D
When the key is not in the cabin or the key battery is dead, the driver attempts to start the engine or turn the engine switch on (ACC or IG).
In this situation, the following control is performed:
| Possible Effects without Warning | Confuses the user |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Sounds once |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly for 10 seconds (and then automatically turned off):
|
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when the following condition is met:
Tech Tips If the key is in the cabin, press the wireless door lock switch and confirm that the indicator comes on. If the indicator does not come on, replace the key battery with a new one. |
Situation E
The lock switch on the door outside handle assembly is pressed to perform entry lock with the key in the cabin.
In this situation, the following control is performed:
| Possible Effects without Warning | Vehicle theft |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
- |
| Wireless Door Lock Buzzer | Warning: Sounds for 2 seconds |
| Engine Switch Indicator Light | - |
Situation F
The vehicle is driven using the key that has a low battery.
In this situation, the following control is performed:
| Possible Effects without Warning | Smart entry and start system does not function |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
Warning: Sounds once |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly for 10 seconds (and then automatically turned off):
|
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
Situation G
There are 2 patterns for situation G.
Pattern 1: When the driver door is open, the driver changes the power source mode to on (ACC) and attempts to leave the vehicle.
Pattern 2: When the driver door is open, the driver changes the power source mode from on (IG) to off and attempts to leave the vehicle.
In these situations, the following control is performed:
Pattern 1 and Pattern 2
| Possible Effects without Warning | Vehicle theft |
| Warning Condition | The warning is activated when either of the following conditions is met:
|
| Combination Meter Assembly
|
Continues to sound at short and even intervals |
| Combination Meter Assembly
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
Situation H
The lock switch on the door outside handle assembly is pressed to perform entry lock with a door open. In this situation, the following control is performed:
| Possible Effects without Warning | Vehicle theft |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
- |
| Wireless Door Lock Buzzer | Warning: Sounds for 5 seconds |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
Situation I
The steering lock cannot be released. In this situation, the following control is performed:
| Possible Effects without Warning | Steering usability function |
| Warning Condition | The steering lock cannot be released, thus the engine is prevented from starting. |
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly for 15 seconds (and then automatically turned off):
|
| Combination Meter Assembly
|
Flashes |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | The green indicator blinks at 1-second intervals (goes off automatically in 15 seconds). |
| Warning Stop Condition | The engine switch is pressed while the steering wheel is turned left and right, and the steering lock is successfully released. |
Situation J
A malfunction of the steering lock ECU (steering lock actuator assembly) is detected. In this situation, the following control is performed:
| Possible Effects without Warning | Malfunction detection |
| Warning Condition | A malfunction of the steering lock ECU (steering lock actuator assembly) is detected. |
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
Warning: Information below is displayed on the combination meter assembly:
|
| Combination Meter Assembly
|
Flashes |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | The amber indicator blinks at 2-second intervals. |
| Warning Stop Condition | The steering lock ECU (steering lock actuator assembly) returns to normal. |
Situation K
A malfunction of the main body ECU is detected. In this situation, the following control is performed:
| Possible Effects without Warning | Malfunction detection |
| Warning Condition | A malfunction in the main body ECU is detected. |
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
- |
| Combination Meter Assembly
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | The amber indicator blinks at 2-second intervals. |
| Warning Stop Condition | The main body ECU returns to normal. |
Situation L
There are 2 patterns for situation L.
Pattern 1: A warning message appears on the multi-information display when the driver does not follow the proper procedure to start the vehicle.
Pattern 2: A message indicating how to start the engine appears on the multi-information display when a key with a dead battery is held close to the engine switch in order to start the engine.
In this situation, the following control is performed:
| Possible Effects without Warning | Usability function |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter
|
- |
| Combination Meter
|
Warning: Information is displayed alternately on the combination meter:
|
| Combination Meter
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
| Possible Effects without Warning | Usability function |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter
|
Warning: Sounds once |
| Combination Meter
|
Warning: Information is displayed alternately on the combination meter:
|
| Combination Meter
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
Situation M
There are 2 patterns for situation M.
Pattern 1: After stopping the engine, the driver cannot restart the engine due to a dead key battery or electrical interference.
Pattern 2: The driver attempts to start the engine after performing a driver door key linked unlock operation.
In these situations, the following control is performed:
| Possible Effects without Warning | Usability function |
| Warning Condition | The warning is activated when all of the following conditions are met:
Tech Tips The "Situation D" occurs twice continuously. After the warning indicating that the key is not in the detection area, none of the following conditions are met:
|
| Combination Meter
|
Warning: Sounds once |
| Combination Meter
|
Warning: Information is displayed alternately on the combination meter:
|
| Combination Meter
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
| Possible Effects without Warning | Usability function |
| Warning Condition | The warning is activated when all of the following conditions are met:
|
| Combination Meter
|
Warning: Sounds once |
| Combination Meter
|
Warning: Information is displayed alternately on the combination meter:
|
| Combination Meter
|
- |
| Wireless Door Lock Buzzer | - |
| Engine Switch Indicator Light | - |
| Warning Stop Condition | The warning is stopped when one of the following conditions is met:
|
BATTERY SAVING
Vehicle Battery Saving Function
In the smart entry and start system, signals are emitted outside of the vehicle at a prescribed interval (0.25 seconds) when the doors are locked. Therefore, the vehicle battery could be drained if the vehicle remains parked for a long time. For this reason, the controls listed below are affected:
| Condition | Control |
|---|---|
| Both conditions below are met for 5 days:
|
Signal transmission interval is extended from 0.25 to 0.75 seconds |
| Both conditions below are met for 14 days:
|
The smart entry and start system is automatically deactivated |
Reinstatement Conditions
A wireless door lock control signal (lock, unlock) is input and the ID code matches.
A user carries the key and pushes a lock switch on a door outside handle assembly.
The driver door is locked or unlocked by the mechanical key.
Key Battery and Vehicle Battery Saving Function
In the smart entry and start system, if the key is constantly located within the vehicle exterior detection area of the doors, the system maintains periodic communication with the key. Therefore, if the vehicle remains parked in that state for a long time, the key battery and the vehicle battery could be drained. For this reason, if this state continues longer than 10 minutes, the smart entry and start system automatically becomes deactivated.
Reinstatement Conditions
A wireless door lock control signal (lock, unlock) is input and the ID code matches.
A user carries the key and pushes a lock switch on a door outside handle assembly.
A door is locked or unlocked by the mechanical key.