System Description
- VEHICLE BATTERY SAVING FUNCTION
- When the smart access system with push-button start (for Entry Function) is operating, the vehicle performs key detection operations every 0.25 seconds. Therefore, if the vehicle left as is for a long period of time, the battery may become fully depleted. The following controls help reduce the rate at which the battery is depleted.
- 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.
- If the engine is not started for 15 days or more, the lock and unlock sensors of the front passenger side door outside handle assembly are disabled. Therefore, only the unlock sensor of the front door outside handle assembly of the driver side door can be used to unlock the doors.
- If 10 minutes or more elapse while the key is in the detection area (including the vehicle interior), smart access system with push-button start control stops operating.
- To restore operation of the smart access system with push-button start, perform any of the following operations.
- While carrying the key, touch the lock and unlock sensor of the front door outside handle assembly of the driver side 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 side door and lock or unlock the doors.
- When the smart access system with push-button start (for Entry Function) is operating, the vehicle performs key detection operations every 0.25 seconds. Therefore, if the vehicle left as is for a long period of time, the battery may become fully depleted. The following controls help reduce the rate at which the battery is depleted.
- WIRELESS BUZZER VOLUME ADJUSTMENT FUNCTION
- The volume of the wireless buzzer can be changed through the customize function.
HINT:
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 Techstream
- Key registration buzzer operations
- The volume of the wireless buzzer can be changed through the customize function.
- WARNING FUNCTION
- Shift lever not in P (power source cut reminder) vehicle exit warning
- Situation A: The driver side door is opened and 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 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)
- "Shift to P position" is displayed on multi-information display in combination meter assembly
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
- Situation B: Under the conditions specified in situation A, the key 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 on (ACC) or on (IG)
- Driver side door is opened and then closed
- Vehicle speed is 0 km/h (0 mph)
- Key is not inside vehicle (matching code is not detected in vehicle interior)
Warning description - Buzzer in combination meter assembly sounds continuously (beep)
- "Shift to P position" is displayed on multi-information display in combination meter assembly
- Wireless buzzer sounds continuously (beep)
Warning stop condition
(Any condition is met)- Shift lever is moved to P or vehicle is driven: Buzzer stops and only "Key not detected" is displayed on multi-information display
- Engine switch is turned off: All warnings stop
- Key is detected inside vehicle (matching code is detected in vehicle interior): Buzzer stops and only "Shift to P position" is displayed on multi-information display
- Situation A: The driver side door is opened and vehicle exit is attempted while the shift lever is not in P.
- Key reminder warning
- The driver side door is opened and 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 on (ACC)
- Driver side door is opened
- Last mode is not operating*
Condition 2:- Engine switch is off
- Driver side door is opened
- Steering lock is unlocked
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Check steering lock system" is displayed on multi-information display in combination meter assembly
Warning stop condition
(Any condition is met)Condition 1: - Engine switch is turned on (IG)
Condition 2:- Driver side door is opened
Condition 3:- Engine switch is turned off
- Steering lock is locked
Condition 4:- Last mode is operating*
- *: For vehicles with last mode.
- The driver side door is opened and vehicle exit is attempted while the steering lock is unlocked.
- Shift lever in P (power source cut reminder) vehicle exit warning
- Situation A: The driver side door is opened and vehicle exit is attempted while the shift lever is in P and the engine switch is not off.
Item Content Reason for warning Vehicle theft prevention Warning start condition
(All conditions are met)- Shift lever is in P
- Engine switch is on (ACC) or on (IG)
- Driver side door is opened and then closed
- Key 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)
- "Key not detected" is displayed on multi-information display in combination meter assembly
- Wireless buzzer sounds 3 times (short beeps)
Warning stop condition
(Either condition is met)- Engine switch is turned off
- Key is detected inside vehicle (matching code is detected in vehicle interior)
- 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 on (ACC) or on (IG)
- All doors are closed
- Key is outside vehicle (matching code is detected outside of vehicle)
- Key is not inside vehicle (matching code is not detected in vehicle interior)
- Entry lock operation is performed while carrying key
Warning description - Wireless buzzer sounds for 10 seconds (continuous beep)
- Buzzer in combination meter assembly sounds once ("pong" sound)
- "Turn power off", "Key not detected" is displayed on multi-information display in combination meter assembly for 60 seconds
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
- Key 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)
- Situation A: The driver side door is opened and vehicle exit is attempted while the shift lever is in P and the engine switch is not off.
- Passenger has brought key out of vehicle warning
- Any door other than the driver side door is opened and vehicle exit is attempted while carrying the key.
Item Content Reason for warning Prevention of engine being unable to be restarted Warning start condition
(All conditions are met)- Engine switch is 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)
- Key is not inside vehicle or key battery is fully depleted (matching code is not detected in vehicle interior)
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Key not detected" is displayed on multi-information display in combination meter assembly
- Wireless buzzer sounds 3 times (short beeps)
Warning stop condition
(Either condition is met)- Engine switch is turned off
- Key is detected inside vehicle (matching code is detected in vehicle interior)
- Any door other than the driver side door is opened and vehicle exit is attempted while carrying the key.
- Starting to drive without key warning
- The driver starts driving while they key is not in the vehicle.
Item Content Reason for warning Prevention of engine being unable to be restarted Warning start condition Warning due to key 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)
- "Key not detected" is displayed on multi-information display in combination meter assembly
Warning stop condition
(Either condition is met)- Engine switch is turned off
- Key is detected inside vehicle (matching code is detected in vehicle interior)
- The driver starts driving while they key is not in the vehicle.
- Key is not within detection area warning
- An attempt is made to turn the engine switch on (ACC) or on (IG) or to start the engine while the key cannot be detected inside the vehicle or is not operating properly.
Item Content Reason for warning User confusion prevention Warning start condition
(Both conditions are met)- Key is not inside vehicle or key battery is fully depleted (matching code is not detected in vehicle interior)
- Engine switch is on (ACC) or on (IG)
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Key not detected" is displayed on multi-information display in combination meter assembly
Warning stop condition
(Either condition is met)- 15 seconds elapse after warning starts
- Key is detected inside vehicle (matching code is detected in vehicle interior)
- An attempt is made to turn the engine switch on (ACC) or on (IG) or to start the engine while the key cannot be detected inside the vehicle or is not operating properly.
- Key left inside vehicle warning
- 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 on (ACC) or on (IG)
- All doors are closed
- Any door is unlocked
- Key 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)
- Wireless buzzer sounds for 10 seconds (continuous beep)
- "Key detected in vehicle" is displayed on multi-information display in combination meter assembly for 60 seconds
Warning stop condition
(Any condition is met)- Engine switch is turned on (ACC) or on (IG)
- Any door is opened (only buzzer stops)
- Key is detected outside vehicle (matching code is detected outside of vehicle) and entry lock operation is performed
- An entry lock operation is attempted while the key is inside the vehicle.
- Door ajar entry lock warning
- An entry lock operation is attempted while any door is ajar.
Item Content Reason for warning Vehicle theft prevention Warning start condition
(All conditions are met)- Engine switch is off
- Any door is ajar other than door for which entry lock operation is performed
- Entry lock operation is performed while carrying key
- Key is outside vehicle (matching code is detected outside of vehicle)
Warning description - Wireless buzzer sounds for 10 seconds (continuous beep)
Warning stop condition
(Any condition is met)- Engine switch is turned on (ACC) or on (IG)
- All doors are closed
- Wireless unlock operation is performed
- Entry unlock operation is performed
- 10 seconds elapse after warning starts
- An entry lock operation is attempted while any door is ajar.
- Glass hatch key lock-in prevention warning
- The glass hatch is closed while the key is inside the vehicle.
Item Content Reason for warning Vehicle theft prevention Warning start condition
(All conditions are met)- Vehicle speed is 0 km/h (0 mph)
- Entry glass hatch open function is enabled
- All doors are closed and locked
- Key is inside vehicle and glass hatch is closed
Warning description - Wireless buzzer sounds for 10 seconds (continuous beep)
Warning stop condition
(Any condition is met)- Vehicle is driven
- Glass hatch is opened
- 10 seconds elapse after warning starts
- The glass hatch is closed while the key is inside the vehicle.
- Key lock-in prevention function
- 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
- Key is inside vehicle (matching code is detected in vehicle interior)
Condition 2:- Engine switch is off
- All doors are closed
- Lock operation other than entry lock operation is performed
- Key is inside vehicle (matching code is detected in vehicle interior)
Warning description - Wireless buzzer sounds for 10 seconds (continuous beep)
- Buzzer in combination meter assembly sounds once ("pong" sound)
- "Key detected in vehicle" is displayed on multi-information display in combination meter assembly for 60 seconds
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.
- The key is locked in the vehicle.
- Key battery low warning
- The vehicle is driven while the key battery is almost depleted.
Item Content Reason for warning Helpful function Warning start condition
(Both conditions are met)- Engine switch is on (IG) for 20 minutes or more and then turned off
- Key battery is almost depleted
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Key battery low" is displayed on multi-information display in combination meter assembly for 15 seconds
- The vehicle is driven while the key battery is almost depleted.
- Engine starting support
- An attempt is made to start the engine by holding the key against the engine switch while the key battery is fully depleted.
Item Content Reason for warning Helpful function Warning start condition
(All conditions are met)- Engine immobiliser is set
- Key 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 on (IG) are made (matching code is not detected in vehicle interior)
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Depress brake pedal touch engine switch with key" is displayed on multi-information display in combination meter assembly for 60 seconds
Warning stop condition
(Any condition is met)- 60 seconds elapse after warning starts
- Key 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
- 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 off and driver side door is opened
- Power source mode is changed from off to on (ACC) 2 times or more while brake pedal is not depressed
Warning description - Buzzer in combination meter assembly sounds once ("pong" sound)
- "Depress brake pedal, and push engine switch to start" is displayed on multi-information display in combination meter assembly for 10 seconds
Warning stop condition
(Any condition is met)- 10 seconds elapse after warning starts
- Engine switch is turned off
- Engine switch is turned on (IG)
- 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)
- "Shift to P position to start" is displayed on multi-information display in combination meter assembly
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
- An attempt is made to start the engine by holding the key against the engine switch while the key battery is fully depleted.
- Power source off operation advice
- 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)
- "Shift to P range and push engine switch to turn power off" is displayed on multi-information display in combination meter assembly
Warning stop condition
(Any condition is met)- Shift lever is moved to P
- Power source mode is changed to mode other than on (ACC)
- An attempt is made to turn the engine switch off while the shift lever is not in P or N.
- Shift lever not in P (power source cut reminder) vehicle exit warning
- SEQUENCE OF ACTIONS FOR SMART ACCESS SYSTEM WITH PUSH-BUTTON START
- This lists a sequence of actions pertaining to the smart access system with push-button start (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.
- The following example shows how the information in this section is organized. The "Action" item indicates actions the user performs related to the entry and start 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".
Action - -
Expected Vehicle Response- -
Suspected Area when Expected Vehicle Response Fails and Troubleshooting Information - -
SUSPECTED AREA WHEN Expected Vehicle Response FAILS - Troubleshooting Information
SUSPECTED AREA WHEN Expected Vehicle Response FAILS - Troubleshooting Information
Reference Waveform or Table - See waveform
- See table
HINT:
- Entry and start system DTCs and Data List information can be confirmed with the intelligent tester.
- Check for DTCs using the following method. If any DTCs are output, perform troubleshooting for those DTCs first.
- Connect the intelligent tester to the DLC3.
- Turn the engine switch on (IG).
- Turn the intelligent tester on.
- Enter the following menus: Body / Entry&Start, Starting Control, Power Source Control and Main Body / DTC.
- Check for DTCs.
NOTE:- When the engine switch cannot be turned on (no IG ON), try to establish communication between the vehicle and the intelligent tester by using either of the following methods: 1) Connect the intelligent tester to the DLC3 and turn a courtesy light switch "ON" and off at intervals of 1.5 seconds or less until communication between the intelligent tester and vehicle begins (the intelligent tester screen changes when communication begins), or 2) connect the intelligent tester to the vehicle and select "Manual" from the initial screen on the intelligent tester, and then select "Key Code Registration" under model code.
- If the entry and start system functions have been canceled through the customize function due to a customer request, "Auto Entry Cancel SW" in the Data List displays "ON".
- 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 an electrical key detection area of approximately 0.7 m (2.30 ft.).Reference Waveform or Table - Pulse generation*. Refer to TERMINALS OF ECU
- *: Tester Connection; "G26-3 (CLG1) - G26-15 (E)"
- ACTION 2
Action - The electrical key is brought within 0.7 m (2.30 ft.) of the driver side door.
Expected Vehicle Response- The red LED of the electrical key starts blinking.
HINT:
When the electrical key is detected and the certification ECU confirms that the key ID code of the electrical key and the key ID code stored in the certification ECU match, it puts the touch sensor of the outside door handle 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 does not blink, the following parts may be malfunctioning.
ELECTRICAL KEY - The electrical key is not a key which is registered to the vehicle.
- Confirm that the system operates normally with another key that the customer possesses.
- If the electrical key 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, the power source mode changes to on (ACC) and the indicator illuminates in orange).
- If the door cannot be opened, use the mechanical key built into the electrical key.
HINT:
Before replacing the electrical key, check if the electrical key 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 button of the electrical key 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 malfunction (including when a key from another vehicle is used), electrical key 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 - -
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 driver door outside door handle, but does blink when within 0.7 m (2.30 ft.) of the front passenger side door outside door handle, the driver door outside door handle 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 intelligent tester, 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 button on the electrical key.
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 intelligent tester, 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; "G26-3 (CLG1) - G26-15 (E)"
- *2: Tester Connection; "G27-15 (RDA) - G26-15 (E)"
- *3: Tester Connection; "G27-5 (RCO) - G26-15 (E)"
- *4: Tester Connection; "G27-16 (RSSI) - G26-15 (E)"
- ACTION 3
Action - The unlock sensor of the driver side door outside handle is touched while the electrical key is carried.
Expected Vehicle Response- The doors unlock and an answer-back is performed (the hazard warning lights illuminate and the buzzer sounds).
HINT:
When the door outside handle (unlock sensor) is touched, an unlock sensor "ON" signal is sent to the certification ECU, and the main body ECU supplies power to the door unlock relay in each door based on a command from the certification ECU 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 is malfunctioning as when the electrical key LED does not blink.
DOOR OUTSIDE HANDLE UNLOCK SENSOR - If the doors unlock when the passenger side door unlock sensor is touched while the electrical key 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 table "Check Driver Side Junction Block Assembly and Main Body ECU (Multiplex Network Body ECU)" (ACT-). Refer to TERMINALS OF ECU
- *: Tester Connection; "G26-20 (SEN1) - G26-15 (E)"
- 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, the engine switch is pressed once without depressing the brake pedal.
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 immobiliser 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 inside the vehicle. Upon receiving the request signal, the electrical key transmits an ID code at 300 to 400 MHz (at this time the red LED of the electrical key illuminates briefly). When the ID code from the electrical key and the ID code stored in the certification ECU 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 is completed, and then the steering wheel is unlocked. After the steering wheel is unlocked, the immobiliser is unset.
- "Immobiliser" 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.
- For approximately 30 seconds after a door is closed.
- The brake pedal is depressed.
- For approximately 30 seconds after the brake pedal is depressed once.
- Immediately after the engine switch is pressed.
- *1: Confirms the codes match between the certification ECU and ID code box.
- *2: Confirms the codes match between the steering lock ECU and ID code box.
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, electrical key battery and vehicle battery are possible causes. However, they have already been confirmed using the previous procedures.
CERTIFICATION ECU - -
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 button of the electrical key 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 malfunction (including when a key from another vehicle is used), electrical key 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 IS FORMED) - Using the intelligent tester, 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 is held against the engine switch, the engine can be started.
ENGINE SWITCH - Under normal conditions, "Start Switch" in the Data List changes from "OFF" to "ON" when the engine switch is pressed.
PARK/NEUTRAL POSITION SWITCH - Under normal conditions, "Neutral Switch" in the Data List displays "ON" when the shift lever is moved to P.
ID CODE BOX - It is necessary for "S Code Check" in the Data List to display "OK". If "S Code Check" displays "OK", the certification ECU code and ID code box 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 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; "G27-15 (RDA) - G26-15 (E)"
- *2: Tester Connection; "G26-7 (CLG5) - G26-15 (E)"
- *2: Tester Connection; "G23-3 (IGE) - G23-1 (GND)"
- ACTION 5
Action - The electrical key is carried and the brake pedal is depressed with the shift lever in P.
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 - When the brake pedal is depressed, "Stop Light Switch" in the Data List changes from "OFF" to "ON".
POWER MANAGEMENT CONTROL ECU - Refer to TERMINALS OF ECU
- ACTION 6
Action - The electrical key is carried and the engine switch is pushed while depressing the brake pedal with the shift lever in P.
Expected Vehicle Response- The starter operates.
HINT:
After the engine switch is confirmed to be pressed and the steering is confirmed to be unlocked, 12 V is applied to the ST relay from terminal STAR of the power management control ECU and the starter operatesSuspected 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 - -
POWER MANAGEMENT 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 management 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 certify each other and "EFI Code Receive" in the Data List changes from "NG" to "OK". After that, fuel injection continues to be performed.
- 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.
- ACTION 8
Action - A door is opened with the engine switch 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".
- ACTION 9
Action - The lock sensor of the driver side door outside door handle is touched while the electrical key 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).