MULTI CHANNEL FUNCTION
The electrical key transmitter sub-assembly and smart door control 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.
BASIC PRECAUTIONS
DTC numbers and ECU Data Lists of the smart entry and start system can be checked using the GTS.
Check for DTCs using the following procedure. If any DTCs are output, diagnose those DTCs first.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Enter the following menus: Body Electrical / Entry&Start, Power Source Control or Starting Control / Trouble Codes.
When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
If cancel is selected for the smart entry and start system customize setting, cancel the smart key cancel setting.
DIAGRAM OF SMART ENTRY AND START SYSTEM
SYSTEM DESCRIPTION
The following pattern will be used: "Operation" indicates user operation using the smart entry and start 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 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. Tech Tips 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 (F13-4 (CLG1) - F13-11 (E)*) |
*: Click here
Operation 2
| Operation | Bring the electrical key transmitter sub-assembly within 0.7 m (2.30 ft.) of the driver door. Tech Tips 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 → Smart door control 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 |
|
*: Click here
| Suspected Area | Diagnosis |
|---|---|
| Electrical key transmitter sub-assembly |
Tech Tips
|
| Transmitter battery is depleted |
|
| Wave Interference |
|
| 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.
|
| Smart Door Control Receiver Assembly |
|
| Vehicle Battery is discharged | It may be possible to tell whether the vehicle battery is discharged by operating the horn. |
| Others |
|
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 |
|
*: Click here
| 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) |
|
| 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 while not depressing the brake pedal. |
| Expected operation of the vehicle |
If any of the preceding did not happen, check the suspected areas in the following table. Tech Tips When the engine 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 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 "ACCESSORY" is displayed on the multi-information display in the combination meter assembly. After the power source mode has changed, and L code and S code*1 verification has been completed, the steering will be unlocked and the immobiliser will be inactive. The Data List status of "Immobiliser" 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 → Smart door control receiver assembly → Certification ECU (smart key ECU assembly) Tech Tips The interior detection area is formed when any of the following conditions are met:
|
| Waveform or Output Value |
|
*1: w/ Rear Seat Heater
*2: Click here
| Suspected Area | Diagnosis |
|---|---|
| Certification ECU (smart key ECU assembly) | - |
| Wave Interference |
|
| Indoor electrical key antenna assemblies that form the interior detection areas |
|
| 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 | In order to unlock the steering, it is necessary for "S Code Check" in the Date 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 | 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) |
|
*1: w/ Rear Seat Heater
*2: w/o Rear Seat Heater
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 |
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 while depressing the brake pedal. |
| Expected operation of the vehicle | The engine 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". |
| 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 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 engine 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".*1 When the front door RH is opened, "ON" is displayed for the Data List item "FR Door Courtesy SW".*2 |
*1: for LHD
*2: for RHD
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. |
VEHICLE BATTERY SAVING FUNCTION
When the smart entry and start 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 vehicle battery may become fully discharged. The following controls help reduce the rate at which the vehicle battery is discharged.
If the smart entry and start 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.
If the smart entry and start system is not operated for 14 days or more, the lock and unlock sensors of the 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.
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.
To restore operation of the smart entry and start system, perform any of the following operations.
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.
Lock or unlock the doors with the wireless operation.
Insert the mechanical key into the door key cylinder of the driver door and lock or unlock the doors.
WIRELESS BUZZER VOLUME ADJUSTMENT FUNCTION (w/ Wireless Door Lock Buzzer Answer-back Function)
The volume of the wireless buzzer can be changed through the customize function.
Tech Tips
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 GTS
Key registration buzzer operations
WARNING FUNCTION
Warning
Situation: The engine is left running 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 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.
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) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
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) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
Warning stop conditions for (A)
Warning stop conditions for (B)
|
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
|
| Condition 2
|
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
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) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
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, engine cannot be restarted, discharged vehicle battery |
| Warning Start Condition (All conditions are met) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
Warning stop conditions for (A)
Warning stop conditions for (B)
|
Situation: A passenger gets out of the vehicle while carrying the electrical key transmitter sub-assembly.
When the engine 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 | Engine cannot be restarted |
| Warning Start Condition (All conditions are met) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
Situation: The electrical key transmitter sub-assembly is not in the interior or exterior detection areas.
The driver attempts to turn the engine 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 engine switch.
In this situation, the following control is performed:
| Possible effects without warning | Confuses the user |
| Warning Start Condition (All conditions are met) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
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 | Engine cannot be restarted |
| Warning Start Condition (All conditions are met) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
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) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
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) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
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) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
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, engine cannot be restarted |
| Warning Start Condition (Either Condition 1 or 2 is met) |
Condition 1
|
| Condition 2
|
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
Situation: The steering cannot be unlocked.
The steering cannot be unlocked, thus the engine 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 |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
Situation: The smart entry and start 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) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
Situation: The engine does not start. (Situation A)
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.
In this situation, the following control is performed:
| Possible effects without warning | Engine cannot be restarted |
| Warning Start Condition (One condition is met) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
Situation: Immobiliser system certification completion occurs.
When the transmitter battery is depleted, the smart entry and start system is canceled or wave interference occurs, the electrical key transmitter sub-assembly is touched to the engine switch.
In this situation, the following control is performed:
| Possible effects without warning | Malfunction cannot be detected |
| Warning Start Condition |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
Situation: The engine does not start. (Situation B)
There are two patterns for this situation.
Pattern 1:
The engine might be started (when the driver gets in the vehicle, or the engine switch is turned on (ACC)).
In this situation, the following control is performed:
| Possible effects without warning | Engine cannot be restarted |
| Warning Start Condition (Either condition is met) |
|
| Warning description (Not displayed while the opening image is displayed.) |
|
| Warning Stop Condition (One condition is met) |
|
Pattern 2:
The engine might be started (when the engine switch is on (IG)).
In this situation, the following control is performed:
| Possible effects without warning | Engine cannot be restarted |
| Warning Start Condition (Either condition is met) |
|
| Warning description |
|
| Warning Stop Condition (One condition is met) |
|
Situation: The engine 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 engine switch off with the shift lever in any position other than P or N
In this situation, the following control is performed:
| Possible effects without warning | Discharged vehicle battery, vehicle roll-away |
| Warning Start Condition |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
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 vehicle battery, vehicle roll-away |
| Warning Start Condition |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|
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 vehicle battery |
| Warning Start Condition (All conditions are met) |
|
| Warning description |
|
| Warning Stop Condition (Either condition is met) |
|