System Description

1. When the smart key system (for Entry Function) 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 battery may become fully depleted. The following functions help reduce the rate at which the battery is depleted.
   1. If the engine is not started for 6 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 engine is not started for 15 days or more, the lock and unlock sensors of the front door outside handle assembly RH are disabled. Therefore, only the unlock sensor of the front door outside handle assembly LH can be used to unlock the doors.
   3. If 10 minutes or more elapse while the electrical key transmitter is in the detection area (including the vehicle interior), smart key system (for Entry Function) control stops operating.
2. To restore operation of the smart key system (for Entry Function), perform any of the following operations.
   1. While carrying the electrical key transmitter, touch the lock and unlock sensor of the front door outside handle assembly LH 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 side door and lock or unlock the doors.

1. Shift lever not in P (power source cut reminder) vehicle exit warning (for Automatic Transaxle)
   1. Situation A: The driver side door is opened and a vehicle exit is attempted while the shift lever is not in P.

      Item	Content
      Reason for warning	Prevention of sudden forward movement of vehicle Vehicle theft prevention Vehicle roll-away (vehicle starts moving even when nobody is aboard due to slope, etc.) prevention
      Warning start condition (All conditions are met)	Shift lever is not in P Engine switch is turned on (ACC) or on (IG) Driver side door is opened Vehicle speed is 0 km/h (0 mph)
      Warning description	Buzzer in combination meter assembly sounds continuously (beep)
      Warning stop condition (Any condition is met)	Shift lever moved to P Engine switch is turned off Driver side door is closed Vehicle is driven

   2. Situation B: Under the conditions specified in situation A, the electrical key transmitter is brought out of the vehicle, the driver side door is closed and movement away from the vehicle is attempted.

      Item	Content
      Reason for warning	Prevention of sudden forward movement of vehicle Vehicle theft prevention Vehicle roll-away prevention
      Warning start condition (All conditions are met)	Shift lever is not in P Engine switch is turned on (ACC) or on (IG) Driver side door is opened and then closed Vehicle speed is 0 km/h (0 mph) Electrical key transmitter is not inside vehicle (matching code is not detected in vehicle interior)
      Warning description	Buzzer in combination meter assembly sounds continuously (beep)
      Warning stop condition (Any condition is met)	Shift lever is moved to P or vehicle is driven: Buzzer stops Engine switch is turned off: All warnings stop Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior): Buzzer stops

2. Key reminder warning
   1. The driver side door is opened and a vehicle exit is attempted while the steering lock is unlocked.

      Item	Content
      Reason for warning	Vehicle theft prevention
      Warning start condition (Any condition is met)	Condition 1: Engine switch is turned on (ACC) Driver side door is opened Last mode is not operating* Condition 2: Engine switch is turned off Driver side door is opened Steering lock is unlocked
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Any condition is met)	Condition 1: Engine switch is turned on (IG) Condition 2: Driver side door is closed Condition 3: Engine switch is turned off Steering lock is locked Condition 4: Last mode is operating*

      • *: For vehicles with last mode.
3. Shift lever in P (power source cut reminder) vehicle exit warning (for Automatic Transaxle)
   1. Situation A: The driver side door is opened and a vehicle exit is attempted while the shift lever is in P and the engine switch is not turned off.

      Item	Content
      Reason for warning	Vehicle theft prevention
      Warning start condition (All conditions are met)	Shift lever is in P Engine switch is turned on (ACC) or on (IG) Driver side door is opened and then closed Electrical key transmitter is not inside vehicle (matching code is not detected in vehicle interior) Vehicle speed is 0 km/h (0 mph)
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Either condition is met)	Engine switch is turned off Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior)

   2. Situation B: Under the conditions specified in situation A, the doors are closed and an entry lock operation is attempted.

      Item	Content
      Reason for warning	Vehicle theft prevention
      Warning start condition (All conditions are met)	Shift lever is in P Engine switch is turned on (ACC) or on (IG) All doors are closed Electrical key transmitter is outside vehicle (matching code is detected outside of vehicle) Electrical key transmitter is not inside vehicle (matching code is not detected in vehicle interior) Entry lock operation is performed while carrying electrical key transmitter
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Any condition is met)	Engine switch is turned off Shift lever is moved to any position other than P Vehicle is driven Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior) Any door is opened (only buzzer stops) 10 seconds elapse after warning starts (only buzzer stops)

4. Passenger has brought key out of vehicle warning
   1. Any door other than the driver side door is opened and a vehicle exit is attempted while carrying the key.

      Item	Content
      Reason for warning	Prevention of state in which engine is unable to be restarted
      Warning start condition (All conditions are met)	Engine switch is turned on (ACC) or on (IG) Any door other than driver side door is opened and then closed Vehicle speed is 0 km/h (0 mph) Electrical key transmitter is not inside vehicle or transmitter battery is fully depleted (matching code is not detected in vehicle interior)
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Either condition is met)	Engine switch is turned off Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior)

5. Starting to drive without key warning
   1. The driver starts driving while the electrical key transmitter is not in the vehicle.

      Item	Content
      Reason for warning	Prevention of state in which engine is unable to be restarted
      Warning start condition	Warning due to electrical key transmitter being brought out of vehicle is operating and vehicle speed is more than 0 km/h (0 mph) (first time only)
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Either condition is met)	Engine switch is turned off Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior)

6. Key is not within detection area warning
   1. An attempt is made to turn the engine switch on (ACC) or on (IG) or to start the engine while the electrical key transmitter cannot be detected inside the vehicle or while the electrical key transmitter is not operating properly.

      Item	Content
      Reason for warning	User confusion prevention
      Warning start condition (Both conditions are met)	Electrical key transmitter is not inside vehicle or transmitter battery is fully depleted (matching code is not detected in vehicle interior) Engine switch is turned on (ACC) or on (IG)
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Either condition is met)	15 seconds elapse after warning starts Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior)

7. Key left inside vehicle warning
   1. An entry lock operation is attempted while the key is inside the vehicle.

      Item	Content
      Reason for warning	Vehicle theft prevention
      Warning start condition (All conditions are met)	Engine switch is turned on (ACC) or on (IG) All doors are closed Any door is unlocked Electrical key transmitter is inside vehicle (matching code is detected in vehicle interior) and entry lock operation is performed
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Any condition is met)	Engine switch is turned on (ACC) or on (IG) Any door is opened (only buzzer stops) Electrical key transmitter is detected outside vehicle (matching code is detected outside of vehicle) and entry lock operation is performed

8. Key lock-in prevention function
   1. The key is locked in the vehicle.

      Item	Content
      Reason for warning	Vehicle theft prevention
      Warning start condition (Either condition is met)	Condition 1: Keyless lock operation* is performed Electrical key transmitter is inside vehicle (matching code is detected in vehicle interior) Condition 2: Engine switch is turned off All doors are closed Lock operation other than entry lock operation is performed Electrical key transmitter is inside vehicle (matching code is detected in vehicle interior)
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
      Warning stop condition (Any condition is met)	Engine switch is turned on (ACC) or on (IG) 10 seconds elapse after warning starts (only buzzer stops) 60 seconds elapse after warning starts Vehicle is driven Lock operation is performed

      • *: A keyless lock operation is when a door is locked by operating the door lock knob of an open door, and then closing the door while pulling the front door outside handle assembly.
9. Key battery low warning
   1. The vehicle is driven while the transmitter battery is almost depleted.

      Item	Content
      Reason for warning	Helpful function
      Warning start condition (Both conditions are met)	Engine switch is turned on (IG) for 20 minutes or more and then turned off Transmitter battery is almost depleted
      Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)

10. Engine starting support
    1. An attempt is made to start the engine by holding the electrical key transmitter against the engine switch while the transmitter battery is fully depleted.

       Item	Content
       Reason for warning	Helpful function
       Warning start condition (All conditions are met)	Engine immobilizer is set Electrical key transmitter is not inside vehicle (matching code is not detected in vehicle interior) Unlock operation is performed with mechanical key or 2 consecutive attempts to turn engine switch turned on (IG) are made (matching code is not detected in vehicle interior)
       Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
       Warning stop condition (Any condition is met)	60 seconds elapse after warning starts Electrical key transmitter is detected inside vehicle (matching code is detected in vehicle interior or near engine switch) 30 seconds elapse after any door is opened and closed

    2. The system judges that the driver does not understand how to start the engine.

       Item	Content
       Reason for warning	Helpful function
       Warning start condition (Both conditions are met)	Engine switch is turned off and driver side door is opened Power source mode is changed from off to on (ACC) 2 times or more while brake pedal*1 or clutch pedal*2 is not depressed
       Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
       Warning stop condition (Any condition is met)	10 seconds elapse after warning starts Engine switch is turned off Engine switch is turned on (IG)

       • *1: for Automatic Transaxle
       • *2: for Manual Transaxle
    3. An attempt is made to start the engine while the shift lever is in a position that does not permit the engine to be started.

       Item	Content
       Reason for warning	Helpful function
       Warning start condition (All conditions are met)	Shift lever is not in P or N* Engine is not running Vehicle is not being driven Starter motor is not operating 0.5 seconds or more have elapsed after engine switch is turned on (IG)
       Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
       Warning stop condition (Any condition is met)	Power source mode is changed to mode other than on (IG) Engine is started Vehicle is driven Shift lever is moved to P or N*

       • *: for Automatic Transaxle
11. Power source off operation advice
    1. An attempt is made to turn the engine switch off while the shift lever is not in P or N.

       Item	Content
       Reason for warning	Helpful function
       Warning start condition (Any condition is met)	Shift lever is not in P or N* Engine switch is turned on (ACC) while engine switch is on (IG) or engine is running
       Warning description	Buzzer in combination meter assembly sounds once ("pong" sound)
       Warning stop condition (Any condition is met)	Shift lever is moved to P* Power source mode is changed to mode other than on (ACC)

       • *: for Automatic Transaxle

• This lists a sequence of actions pertaining to the smart key system (unlocking the doors, turning the power source mode to on (ACC) and on (IG), starting and stopping the engine, and locking the doors). The system can be inspected easily by confirming that the operations listed for each step occur.
  Fig 1: Smart Key System Sequence Of Actions

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
• The following example shows how the information in this service information is organized. The "Action" item indicates actions the user performs related to the smart key system, and the "Expected Vehicle Response" item indicates the normal vehicle behavior in response to those actions. The suspected problem areas when the vehicle does not behave as expected and troubleshooting hints for each area are listed under "Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information".

HINT: 

• Smart key system DTCs and Data List information can be confirmed with the Techstream.
• Check for DTCs using the following method. If any DTCs are output, perform troubleshooting for those DTCs first.
  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Enter the following menus: Body Electrical / Smart Key, Starting Control, Power Source Control and Main Body / Trouble Codes.
  5. Check for DTCs.

1. ACTION 1

   Action  All the doors are locked while the key is carried and the user brings the key 3 m (9.84 ft.) or more away from the vehicle. HINT:  The request signal is emitted from each door every 0.25 seconds at 134.2 kHz to form a key detection area of approximately 0.7 m (2.30 ft.).

   Reference Waveform or Table  Pulse generation*. Refer to TERMINALS OF ECU  *: Tester Connection: "C35-3 (CLG1) - C35-15 (E)"

2. ACTION 2

   Action  The electrical key transmitter is brought within 0.7 m (2.30 ft.) of the driver side door. Expected Vehicle Response  The red LED of the electrical key transmitter starts blinking. HINT:  When the electrical key transmitter is detected and the certification ECU (smart key ECU assembly) confirms that the key ID code of the electrical key transmitter and the key ID code stored in the certification ECU (smart key ECU assembly) match, it puts the touch sensor of the front door outside handle assembly in standby mode (the mode in which detection is possible when the sensor is touched by hand) and allows the door to be unlocked.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  If the LED of the electrical key transmitter does not blink, the following parts may be malfunctioning.

   ELECTRICAL KEY TRANSMITTER  The electrical key transmitter is not a key which is registered to the vehicle. Confirm that the system operates normally with another electrical key transmitter that the customer possesses. If the electrical key transmitter is malfunctioning, the power source mode cannot be changed to on (ACC) and the engine cannot be started (under normal conditions, when the key is brought into the vehicle and the engine switch is pressed without depressing the brake pedal*1 or clutch pedal*2, the power source mode changes to on (ACC) and the indicator illuminates in orange). *1: for Automatic Transaxle *2: for Manual Transaxle If the door cannot be opened, use the mechanical key built into the electrical key transmitter. HINT:  Before replacing the electrical key transmitter, check if the transmitter battery is depleted.

   ELECTRIC WAVE INTERFERENCE  If a problem only occurs in a certain area or at a certain time, electric wave interference may be the problem. If a tool for checking electric waves, such as a signal strength meter, is available, move around the vehicle and check the tool display. A detection area is formed around the driver side door [within 0.7 m (2.30 ft.)]. Therefore, a signal strength meter will detect signals in the LF band (134 kHz). When the lock or unlock switch of the electrical key transmitter is pressed, a signal strength meter will detect signals in the RF band (between 300 to 400 MHz). If signals are detected in the LF or RF band even after moving away from the vehicle, wave interference may be present. If there are problems with the signals sent from the key due to an electrical key transmitter malfunction (including when a key from another vehicle is used), transmitter battery depletion, or wave interference, one of the following Data List items may display "Yes": "Unmatched Vehicle-ID" "No Response" "Unmatched Code or Form" "ID Code Difference"

   CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  -

   DOOR OUTSIDE HANDLE  The vehicle exterior detection area cannot be formed properly. If the key LED does not blink when within 0.7 m (2.30 ft.) of the front door outside handle assembly LH, but does blink when within 0.7 m (2.30 ft.) of the front door outside handle assembly RH, the front door outside handle assembly LH is malfunctioning. When there are problems with the vehicle exterior detection area, the power source mode can still be changed to on (ACC) and the engine can still be started. Using the Techstream, proper formation of the vehicle exterior detection area can be confirmed using "Overhead + Driver Side" in key diagnostic mode. Refer to OPERATION CHECK . Even if there are problems with the detection area, door unlock operations can be performed by pressing the wireless unlock switch on the electrical key transmitter.

   DOOR CONTROL RECEIVER  When the door control receiver fails, the passenger side door cannot be unlocked. When the door control receiver fails, wireless door unlock operations cannot be performed. When the door control receiver fails, the power source mode cannot be changed to on (ACC) and the engine cannot be started. Using the Techstream, the door control receiver function can be checked using "Overhead + Driver Side" in key diagnostic mode. Refer to OPERATION CHECK .

   VEHICLE BATTERY DEPLETED  A simple method to determine whether the battery is depleted is to operate the horn.

   Reference Waveform or Table  Pulse generation*1. Refer to TERMINALS OF ECU  Pulse generation*2. Refer to TERMINALS OF ECU  Pulse generation*3. Refer to TERMINALS OF ECU  Pulse generation*4. Refer to TERMINALS OF ECU  *1: Tester Connection: "C35-3 (CLG1) - C35-15 (E)" *2: Tester Connection: "C36-15 (RDA) - C35-15 (E)" *3: Tester Connection: "C36-5 (RCO) - C35-15 (E)" *4: Tester Connection: "C36-16 (RSSI) - C35-15 (E)"

3. ACTION 3

   Action  The unlock sensor of the front door outside handle assembly LH is touched while the electrical key transmitter is carried. Expected Vehicle Response  The doors unlock and an answer-back is performed (the hazard warning lights illuminate and the wireless door lock buzzer sounds). HINT:  When the front door outside handle assembly (unlock sensor) is touched, an unlock sensor "ON" signal is sent to the certification ECU (smart key ECU assembly), and the main body ECU (multiplex network body ECU) supplies power to the door unlock relay in each door based on a command from the certification ECU (smart key ECU assembly) via CAN communication.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  When the doors do not unlock even though the unlock sensor is touched, the following parts may be malfunctioning.

   The same part as when the key LED does not blink is malfunctioning.

   DOOR OUTSIDE HANDLE UNLOCK SENSOR  If the doors unlock when the passenger side door unlock sensor is touched while the electrical key transmitter is carried, the driver side door unlock sensor may be malfunctioning. Under normal conditions, "D-Door Touch Sensor" in the Data List displays "ON" when the unlock sensor is touched.

   DOOR LOCK/UNLOCK MECHANISM  When a lock/unlock operation cannot be performed by operating the door control switch inside the vehicle, the door lock mechanism itself may be malfunctioning.

   Reference Waveform or Table  Pulse generation*. Refer to TERMINALS OF ECU  See "Check Main Body ECU (Multiplex Network Body ECU)" (ACT-). Refer to TERMINALS OF ECU  *: Tester Connection: "C35-20 (SEN1) - C35-15 (E)"

4. ACTION 4

   Action  The driver side door is opened, the user sits in the driver seat and then closes the driver side door while carrying the key. With the shift lever in P*1, the engine switch is pressed once without depressing the brake pedal*1 or clutch pedal*2. *1: for Automatic Transaxle *2: for Manual Transaxle Expected Vehicle Response  The engine switch illuminates in orange [the power source mode changes to on (ACC)]. The security indicator light stops blinking and turns off. The immobilizer changes from set to unset and engine start is permitted. The steering unlocks. HINT:  When the engine switch is pressed, the indoor electrical key antenna forms the vehicle interior detection area (134.2 kHz) in order to detect the electrical key transmitter inside the vehicle. Upon receiving the request signal, the electrical key transmitter transmits an ID code at 300 to 400 MHz (at this time the red LED of the electrical key transmitter illuminates briefly). When the ID code from the electrical key transmitter and the ID code stored in the certification ECU (smart key ECU assembly) match, the ACC relay turns "ON" when the engine switch is pressed, and the engine switch indicator illuminates in orange. After the power source mode changes, S code verification*1 and L code verification*2 are completed, and then the steering wheel is unlocked. After the steering wheel is unlocked, the immobilizer is unset. "Immobilizer" in the Data List changes from "Set" to "Unset". When any of the following conditions are met, the vehicle interior detection area is formed. A door is opened. It is within approximately 30 seconds after a door is closed. The brake pedal*3 or clutch pedal*4 is depressed. It is within approximately 30 seconds after the brake pedal is depressed once. It is immediately after the engine switch is pressed. *1: Confirms the codes match between the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU). *2: Confirms the codes match between the steering lock ECU and ID code box (immobilizer code ECU). *3: for Automatic Transaxle *4: for Manual Transaxle

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  If the power source mode does not change to on (ACC), the following parts may be malfunctioning.

   The electrical key transmitter, transmitter battery and vehicle battery are possible causes. However, they have already been confirmed using the previous procedures.

   CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  -

   ELECTRIC WAVE INTERFERENCE  If a problem only occurs in a certain area or at a certain time, electric wave interference may be the problem. If a tool for checking electric waves, such as a signal strength meter, is available, move around the vehicle and check the tool display. A detection area is formed around the driver side door [within 0.7 m (2.30 ft.)]. Therefore, a signal strength meter will detect signals in the LF band (134 kHz). When the lock or unlock switch of the electrical key transmitter is pressed, a signal strength meter will detect signals in the RF band (between 300 to 400 MHz). If signals are detected in the LF or RF band even after moving away from the vehicle, wave interference may be present. If there are problems with the signals sent from the electrical key transmitter due to an electrical key transmitter malfunction (including when a key from another vehicle is used), transmitter battery depletion, or wave interference, one of the following Data List items may display "Yes": "Unmatched Vehicle-ID" "No Response" "Unmatched Code or Form" "ID Code Difference"

   INDOOR ELECTRICAL KEY ANTENNA (VEHICLE INTERIOR DETECTION AREA FORMATION)  Using the Techstream, formation of the vehicle interior detection area can be confirmed using "Overhead + Front Room" in key diagnostic mode. Refer to OPERATION CHECK . When there are problems with the vehicle interior detection area, the power source mode cannot be changed to on (ACC) and the engine cannot be started. However, if the electrical key transmitter is held against the engine switch, the engine can be started.

   ENGINE SWITCH  Under normal conditions, "Start Switch1, Start Switch2" in the Data List changes from "OFF" to "ON" when the engine switch is pressed.

   PARK/NEUTRAL POSITION SWITCH (for Automatic Transaxle)  Under normal conditions, "Neutral SW/Clutch SW" in the Data List displays "ON" when the shift lever is moved to P.

   ID CODE BOX (IMMOBILIZER CODE ECU)  It is necessary for "S Code Check" in the Data List to display "OK". If "S Code Check" displays "OK", the certification ECU (smart key ECU assembly) code and ID code box (immobilizer code ECU) code match.

   STEERING LOCK  It is necessary for "L Code Check" in the Data List to display "OK". If "L Code Check" displays "OK", the steering lock ECU L code and ID code box (immobilizer code ECU) L code match. When the power source mode changes to on (ACC) and "S Code Check" and "L Code Check" are both "OK", power is supplied to the unlock circuit of the steering lock motor for approximately 10 seconds. At this time, "Unlock Request Receive" in the Data List changes from "NG" to "OK" momentarily. As a result, when the steering unlocks, "Steering Unlock" in the Data List changes from "OFF" to "ON".

   Reference Waveform or Table  Pulse generation*1. Refer to TERMINALS OF ECU  Pulse generation*2. Refer to TERMINALS OF ECU  Pulse generation*3. Refer to TERMINALS OF ECU *1: Tester Connection: "C36-15 (RDA) - C35-15 (E)" *2: Tester Connection: "C35-7 (CLG5) - C35-15 (E)" *3: Tester Connection: "C18-3 (IGE) - C18-1 (GND)"

5. ACTION 5

   Action  The electrical key transmitter is carried and the brake pedal*1 or clutch pedal*2 is depressed with the shift lever in P*1. *1: for Automatic Transaxle *2: for Manual Transaxle Expected Vehicle Response  The engine switch indicator illuminates in green.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  If the engine switch indicator does not illuminate in green, the following parts may be malfunctioning.

   STOP LIGHT SWITCH (for Automatic Transaxle)  When the brake pedal is depressed, "Stop Light Switch" in the Data List changes from "OFF" to "ON".

   POWER SOURCE CONTROL ECU  Refer to TERMINALS OF ECU

6. ACTION 6

   Action  The electrical key transmitter is carried and the engine switch is pushed while depressing the brake pedal*1 or clutch pedal*2 with the shift lever in P*1. *1: for Automatic Transaxle *2: for Manual Transaxle Expected Vehicle Response  The starter operates. HINT:  After it is confirmed that the engine switch is being pressed and the steering is unlocked, 12 V is applied to the ST relay from terminal STAR of the power source control ECU and the starter operates.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  If the starter does not operate, the following parts may be malfunctioning.

   STEERING LOCK SYSTEM  Under normal conditions, the steering lock bar should be in the unlock position and "Steering Unlock Switch" in the Data List should display "ON".

   CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  -

   POWER SOURCE CONTROL ECU  "Starter SW" in the Data List indicates the starter activation command. When this Data List item turns "ON", 12 V is output from terminal STAR of the power source control ECU and applied to the ST relay.

   STARTER RELAY  "Starter Relay" in the Data List indicates the voltage at terminal STA and indicates whether voltage is actually applied to the starter relay.

   STARTER MOTOR  Refer to Engine does not Start

   VEHICLE BATTERY DEPLETED  A simple method to determine whether the battery is depleted is to operate the horn.

   Expected Vehicle Response  The engine starts.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  -

   ECM  When the engine speed reaches 500 rpm, the ECM and ID code box (immobilizer code ECU) certify each other and "EFI Code Receive" in the Data List changes from "NG" to "OK". After that, fuel injection continues to be performed.

7. ACTION 7

   Action  The engine switch is pressed. Expected Vehicle Response  The engine stops and the engine switch stops illuminating in green and turns off (all power is turned off). The security indicator light starts blinking.

8. ACTION 8

   Action  A door is opened with the engine switch is turned off. Expected Vehicle Response  The steering is locked.

   Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information  If the steering does not lock, the following parts may be malfunctioning.

   STEERING LOCK SYSTEM  -

   DOOR COURTESY SWITCH  When the driver side door is opened, "FL Door Courtesy" in the Data List changes from "ON" to "OFF".

9. ACTION 9

   Action  The lock sensor of the front door outside handle assembly LH is touched while the electrical key transmitter is carried. Expected Vehicle Response  The doors are locked. At the same time, answer-back is performed (the hazard warning lights illuminate and the buzzer sounds).