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 |
|---|---|
| - | - |
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 vehicle engine switch off, connect the GTS to the vehicle 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 the 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
MULTI CHANNEL FUNCTION
The electrical key transmitter sub-assembly and door control receiver 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.
| *a | Carrying the electrical key transmitter sub-assembly and pressing the trigger switch causes the vehicle exterior detection areas to form using LF electrical waves, and the system waits for a response from the electrical key transmitter sub-assembly. | *b | When the electrical key transmitter sub-assembly receives LF electrical waves from the vehicle while in a vehicle exterior detection area, it responds with RF electrical waves. |
| *c | When the vehicle receives RF electrical waves from the electrical key transmitter sub-assembly, the certification ECU starts the exterior antenna and uses LF electrical waves to find which vehicle exterior detection area the electrical key transmitter sub-assembly is located in. | *d | When the electrical key transmitter sub-assembly receives LF electrical waves it sends RF electrical waves back to the vehicle. (At this time, the vehicle confirms which vehicle exterior detection area the electrical key transmitter sub-assembly is located in.) |
| *e | The electrical key transmitter sub-assembly determines which key ID (maximum of 4) to use from the LF electrical waves sent from the vehicle. | *f | Once the electrical key transmitter sub-assembly sends its key ID using RF electrical waves and the vehicle receives the key ID, certification is complete. |
| *g | The system switches channels when external electrical waves exist. | *h | LF band (from vehicle) |
| *i | RF band (from electrical key transmitter sub-assembly) | - | - |
The multi channel system changes the channels when the RF band (*b, *d and *f) is interrupted by wave interference. Refer to the table below to confirm when the system changes the channels.
| *b or *d is NG | *f is NG | |||
|---|---|---|---|---|
| Condition | RF waves cannot be received | RF waves cannot be received properly | RF waves cannot be received | RF waves cannot be received properly |
| Channel switching | The channels will not be switched. | The channels will be switched. | The channels will not be switched. | The channels will be switched. |
*: The channels are not switched during vehicle interior verification after an entry lock operation is performed.
DIAGNOSIS IN ACCORDANCE WITH USER OPERATION
Operation 1
| Operation | Turn the engine switch off and lock all the doors, and then take the electrical key transmitter sub-assembly approximately 3 m (9.84 ft.) or more away from the vehicle. |
Operation 2
| Operation | While carrying the electrical key transmitter sub-assembly, press the trigger switch on the front door outside handle assembly (for Driver Door). Tech Tips When the trigger switch is pressed, a request signal is sent from the indoor electrical key antenna, and a detection area of approximately 0.7 m (2.30 ft.) is formed to detect the electrical key transmitter sub-assembly. Signal transmission: Certification ECU (smart key ECU assembly) → Front door outside handle assembly (electrical key antenna) → Electrical key transmitter sub-assembly → Door control receiver → Certification ECU (smart key ECU assembly) → Instrument panel junction block assembly (body ECU) |
| Expected operation of the vehicle | While the doors are unlocked, the answer-back is performed at the same time. If not, any of the parts listed in the table below may be malfunctioning. |
| Waveform or output value |
|
*: Click here
| Suspected Area | Diagnosis |
|---|---|
| Electrical key transmitter sub-assembly |
Tech Tips
|
| Transmitter battery is depleted |
Tech Tips The output of the electrical key transmitter sub-assembly will decrease if it is in low temperatures.
|
| Wave interference |
|
| Certification ECU (smart key ECU assembly) |
|
| Front door outside handle assembly (electrical key antenna) | Vehicle exterior detection area is not formed properly.
|
| Door control receiver |
|
| Vehicle battery is discharged | It may be possible to tell whether the vehicle battery is discharged by operating the horn. |
| 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. |
| Others | If the smart entry and start system function has been canceled through the customize function, the detection area will not be formed and the door lock function will not operate even if the trigger switch is pressed. |
*1: for Automatic Transmission
*2: for Manual Transmission
Operation 3
| Operation | After getting into the vehicle while carrying the electrical key transmitter sub-assembly, close the door and press the engine switch once with the shift lever in P*1 while not depressing the brake pedal*1 or clutch pedal*2. |
| Expected operation of the vehicle |
If any of the above conditions are not met, the parts listed below may be malfunctioning. 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 the smart warning light in the combination meter assembly blinks green slowly. After the power source mode has changed, L code verification has been completed, the steering wheel 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 assembly → Electrical key transmitter sub-assembly → Door control receiver → 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: for Automatic Transmission
*2: for Manual Transmission
*3: Click here
| Suspected Area | Diagnosis |
|---|---|
| Certification ECU (smart key ECU assembly) | - |
| Wave interference |
|
| Indoor electrical key antenna assemblies that form the front 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". |
| 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) |
|
*: for Automatic Transmission
Tech Tips
The electrical key transmitter sub-assembly, the transmitter battery and the vehicle battery have already been inspected in the previous operation steps. However, if they have not been inspected, inspect them.
Operation 4
| Operation | Depress the brake pedal*1 or clutch pedal*2 with the shift lever in P*1 while carrying an electrical key transmitter sub-assembly. |
| Expected operation of the vehicle | The smart warning light in the combination meter assembly blinks green. If it does not, the parts listed below may be malfunctioning. |
*1: for Automatic Transmission
*2: for Manual Transmission
| Suspected Area | Diagnosis |
|---|---|
| Stop light switch assembly*1 | If the brake pedal is depressed, "ON" is displayed for the Data List item "Stop Light Switch1". |
| Clutch start switch assembly*2 | If the clutch pedal is depressed, "ON" is displayed for the Data List item "Neutral SW/ Clutch SW". |
| Certification ECU (smart key ECU assembly) | Check Terminals of ECU. |
*1: for Automatic Transmission
*2: for Manual Transmission
Operation 5
| Operation | After getting into the vehicle while carrying the electrical key transmitter sub-assembly, press the engine switch with the shift lever in P*1 while depressing the brake pedal*1 or clutch pedal*2. |
| Expected operation of the vehicle | The engine starts. If it does not, the parts listed below may be malfunctioning. |
*1: for Automatic Transmission
*2: for Manual Transmission
| Suspected Area | Diagnosis |
|---|---|
| Steering lock system | Under normal operation, the steering wheel will be unlocked and "ON" is displayed for the Data List item "Steering Unlock Switch". |
| Vehicle battery is discharged | Whether the vehicle battery is discharged or not can be checked easily by operating the horn. |
Operation 6
| Operation | Press the engine switch. |
| Expected operation of the vehicle | The engine stops, the smart warning light illuminates and then goes off and the theft warning indicator light assembly changes from off to blinking. |
Operation 7
| Operation | Open any of the doors with the engine switch off. |
| Expected operation of the vehicle | The steering wheel locks. If it does not, the parts listed below may be malfunctioning. |
| Suspected Area | Diagnosis |
|---|---|
| Steering lock system | - |
| Door courtesy light switch assembly | - |
Operation 8
| Operation | While carrying the electrical key transmitter sub-assembly, press the trigger switch on the front door outside handle assembly (for Driver Door). |
| Expected operation of the vehicle | Answer-back is performed at the same time when the doors are locked. |
WIRELESS DOOR LOCK BUZZER VOLUME ADJUSTMENT FUNCTION
The volume of the wireless door lock buzzer can be changed through the customize function.
Tech Tips
The volume of the following wireless door lock 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
When any of the situations below occur, the smart entry and start system causes the certification ECU (smart key ECU assembly) to sound the wireless door lock buzzer and a buzzer in the combination meter assembly and the smart warning light in the combination meter assembly to illuminate in order to alert the driver.
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. (for Automatic Transmission)
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:
| Reason for warning | Sudden vehicle start, vehicle theft, vehicle roll-away |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
- 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:
| Reason for warning | Sudden vehicle start, vehicle theft, vehicle roll-away |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The key reminder sounds.
When the driver door is open, the driver turns the engine switch on (ACC) and attempts to leave the vehicle.
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) | Condition 1
|
| Condition 2 (Approval for one second or more)
|
|
| Warning description | Buzzer in combination meter assembly sounds continuously at short and even intervals. |
| Warning stop condition (one of conditions is met) | The warning is stopped when one of the following conditions is met:
|
*: for Automatic Transmission
Situation: The engine is left running with the shift lever in P* when the driver gets out of the vehicle.
*: for Automatic Transmission
- Pattern 1:
When the engine is left running with the shift lever in P, 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:
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (either condition is met) |
|
*1: for Automatic Transmission
*2: w/ Multi-information Display (for TFT Display Type)
*3: w/ Multi-information Display (for Dot Display Type)
- Pattern 2:
Under the situation of pattern 1, the driver presses the trigger switch on the front door outside handle assembly (for Driver Door).
In this situation, the following control is performed:
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: for Automatic Transmission
*2: w/ Multi-information Display (for TFT Display Type)
*3: w/ Multi-information Display (for Dot Display Type)
Situation: The engine is left running when a passenger gets out of the vehicle while carrying the electrical key transmitter sub-assembly.
When the engine is left running, a passenger leaves the vehicle while carrying the electrical key transmitter sub-assembly.
In this situation, the following control is performed:
| Reason for warning | Engine cannot be restarted |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The electrical key transmitter sub-assembly is not in the detection areas.
When the electrical key transmitter sub-assembly is not in the vehicle or the transmitter battery is depleted, the driver attempts to start the engine or turn the engine switch on (IG).
In this situation, the following control is performed:
| Reason for warning | Confuses the user |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The vehicle is driven without an electrical key transmitter sub-assembly.
The vehicle starts moving without the registered electrical key transmitter sub-assembly in the vehicle.
In this situation, the following control is performed:
| Reason for warning | Engine cannot be restarted |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The electrical key transmitter sub-assembly is left in the vehicle.
The trigger switch on a front door outside handle assembly (for Driver Door) is pressed to perform entry lock with the electrical key transmitter sub-assembly left in the vehicle.
In this situation, the following control is performed:
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: Door is ajar.
The trigger switch on the front door outside handle assembly (for Driver Door) is pressed to perform entry lock with a door open.
In this situation, the following control is performed:
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) |
|
| Warning description | Wireless buzzer sounds continuously for 5 seconds. |
| Warning stop condition (one of conditions is met) |
|
Situation: The electrical key transmitter sub-assembly is locked inside the vehicle.
With a door open and the electrical key transmitter sub-assembly in the vehicle, the lock knob is locked and then the door is closed with the door handle being pulled.
In this situation, the following control is performed:
| Reason for warning | Vehicle theft |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
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:
| Reason for warning | Usability function, engine cannot be restarted |
| Warning start condition (all conditions are met) | Condition 1
|
| Condition 2
|
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The steering wheel cannot be released.
The steering wheel cannot be released, thus the engine is prevented from starting. The shift lever is moved to a position other than P before the steering wheel is unlocked.
In this situation, the following control is performed:
| Reason for warning | Usability function |
| Warning start condition (all conditions are met) | Steering wheel cannot be unlocked. |
| Warning description |
|
| Warning stop condition (one of conditions is met) | Steering wheel is unlocked. |
*1: w/ Multi-information Display (for TFT Display Type)
*2: w/ Multi-information Display (for Dot Display Type)
Situation: The smart entry and start system is malfunctioning.
An IG circuit malfunction, vehicle speed signal malfunction or malfunction that interferes with steering lock ECU (steering lock actuator assembly) operation has been detected.
In this situation, the following control is performed:
| Reason for warning | Malfunction detection |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) | The system returns to normal. |
*1: for Manual Transmission
*2: w/ Multi-information Display (for TFT Display Type)
*3: w/ Multi-information Display (for Dot Display Type)
Situation: The engine does not start.
When the engine switch is pressed, the electrical key transmitter sub-assembly cannot be detected in the vehicle two times in a row.
In this situation, the following control is performed:
| Reason for warning | Usability function |
| Warning start condition (all conditions are met) |
|
| Warning description |
|
| Warning stop condition (one of conditions is met) |
|
*1: for Automatic Transmission
*2: for Manual Transmission
*3: w/ Multi-information Display (for TFT Display Type)
*4: w/ Multi-information Display (for Dot Display Type)
Situation: Immobiliser system certification completion occurs.
When an electrical key transmitter sub-assembly with a depleted transmitter battery is held near to the engine switch while depressing the brake.
In this situation, the following control is performed:
| Reason for warning | Malfunction detection |
| Warning start condition (all conditions are met) | Electrical key transmitter sub-assembly certification result is OK. |
| Warning description |
|
*1: for Automatic Transmission
*2: for Manual Transmission
*3: w/ Multi-information Display (for TFT Display Type)
*4: w/ Multi-information Display (for Dot Display Type)