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All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate [12/2024 - ]: Procedure
- CHECK CUSTOMIZE SETTING USING GTS
- Select the setting by referring to the table below.
Smart Key / Access
Tester Display Description Default Setting ECU Auto Entry Cancel Setting Function that enables or disables the smart key system. OFF $00:OFF,$01:ON Certification ECU (Smart key ECU assembly) Auto Entry Cancel 2 Setting Function that only prevents unlocking of the doors. OFF $00:OFF,$04:ON Certification ECU (Smart key ECU assembly) Result
Result Proceed to Smart key system has not been canceled A Smart key system has been canceled B
Result:
B
PERFORM CUSTOMIZE FUNCTION
Refer to CUSTOMIZE PARAMETERS [12/2024 - ]
Result:
A
See step 2
- Select the setting by referring to the table below.
- CHECK SMART KEY SYSTEM (for Entry Function)
- Check the smart key system (for entry function).
Refer to "SMART KEY SYSTEM (for Entry Function)".
OK
Smart key system (for Entry Function) operates properly
Result
Proceed to OK NG
Result:
NG
Refer to "SMART KEY SYSTEM (for Entry Function)"
Result:
OK
See step 3
- Check the smart key system (for entry function).
- CHECK ENTRY FUNCTION AND WIRELESS FUNCTION (DRIVER DOOR / FRONT PASSENGER DOOR / BACK DOOR)
- Check whether it is possible to use the digital key to perform door lock/unlock with the entry function.
- Check the entry unlock function (driver door, front passenger door).
- Turn the ignition switch off.
- Open and close the driver door.
- From outside the vehicle, press the lock switch displayed on the digital key and lock all doors.
- Hold the key in your hand and hold your hand inside the digital key detection range. Then grip the sensor on the reverse side of the door outside handle for 2 seconds or longer.*
*a Unlock Sensor (Backside) The illustrations shown are examples only.
- *: Perform this step 3 seconds or more after performing step (3).NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
Refer to PRECAUTION [12/2024 - ]
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
HINT:
- When checking the operation of the unlock sensor again, make sure to perform the procedure from step (1).
- Inspect the front passenger door using the same procedure.
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- *: Perform this step 3 seconds or more after performing step (3).
- Check the entry lock function (driver door, front passenger door).
- Turn the ignition switch off.
- Open and close the driver door.
- Hold the key in your hand and hold your hand inside the digital key detection range. Then touch the lock sensor on the surface of the door outside handle (indentation on the door outside handle) with multiple fingers for 2 seconds or longer.
*a Lock Sensor The illustrations shown are examples only.
NOTE:- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
Refer to PRECAUTION [12/2024 - ]
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
HINT:
- If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
- When checking the operation of the lock sensor again, make sure to perform the procedure from step (1).
- When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.
- Inspect the front passenger door using the same procedure.
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Check the entry back door open function.
- With the back door closed and locked, hold the digital key in your hand and hold your hand inside the digital key detection range. Then operate the open switch.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
Refer to PRECAUTION [12/2024 - ]
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
*a License Plate Light Assembly with Back Door Opener Switch (Open Switch) The illustrations shown are examples only.
- With the back door closed and locked, hold the digital key in your hand and hold your hand inside the digital key detection range. Then operate the open switch.
- Check the entry back door unlock function.
*a Back Door Control Switch (Unlock Switch) The illustrations shown are examples only.
- With the back door closed and locked, hold the digital key in your hand and hold your hand inside the digital key detection range. Then operate the unlock switch.
NOTE:- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
Refer to PRECAUTION [12/2024 - ]
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
- Check the entry back door lock function.
*a Back Door Control Switch (Lock Switch) The illustrations shown are examples only.
- With the back door closed and unlocked, hold the digital key in your hand and hold your hand inside the digital key detection range. Then operate the lock switch.
NOTE:- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
Refer to PRECAUTION [12/2024 - ]
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
- Check the entry unlock function (driver door, front passenger door).
- Check the wireless function.
Refer to OPERATION CHECK [12/2024 - ]
Result
Result Proceed to All door entry function and wireless function operate A All door entry function does not operate, but wireless function operates B All door entry function and wireless function do not operate C Entry function does not operate for one or more doors, but wireless function operates
Result:
B
See step 5
Result:
C
GO TO OTHER PROBLEM
Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]
Result:
A
See step 4
- Check whether it is possible to use the digital key to perform door lock/unlock with the entry function.
- CAUSE ANALYSIS
- Using the GTS, check for Vehicle Control History (RoB).
Body Electrical > Smart Key > Utility
Tester Display Vehicle Control History (RoB) - Perform cause analysis.
- Take appropriate action in accordance with the result of the cause analysis.
Result
Proceed to NEXT
Result:
NEXT
END
- Using the GTS, check for Vehicle Control History (RoB).
- CHECK DIGITAL KEY DIAGNOSTIC MODE (DRIVER DOOR / FRONT PASSENGER DOOR / BACK DOOR) NOTE:
With only one digital key connected to BLE, perform inspection in digital key diagnostic mode.
- Check the BLE door digital key receiver (front door outside handle assembly (for driver door)) in digital key diagnostic mode.
- Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key driver door outside area
Body Electrical > Smart Key > Utility
Tester Display Communication Check (Digital Key Diag Mode) - Hold the digital key in your hand, and hold your hand inside the digital key detection range. Check that the wireless buzzer sounds.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
- Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key driver door outside area
- Check the BLE door digital key receiver (front door outside handle assembly (for front passenger door)) in digital key diagnostic mode.
- Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key passenger door outside area
Body Electrical > Smart Key > Utility
Tester Display Communication Check (Digital Key Diag Mode) - Hold the digital key in your hand, and hold your hand inside the digital key detection range. Check that the wireless buzzer sounds.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
- Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key passenger door outside area
- Check the No. 2 BLE door digital key receiver assembly in digital key diagnostic mode.
- Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key back door/trunk lid outside area
Body Electrical > Smart Key > Utility
Tester Display Communication Check (Digital Key Diag Mode) - Hold the digital key in your hand, and hold your hand inside the digital key detection range. Check that the wireless buzzer sounds.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
Refer to PRECAUTION [12/2024 - ]
Result
Result Proceed to The buzzer sounds in all operation ranges A The buzzer fails to sound in all operation ranges B The buzzer does not sound in a particular operation range C - Using the GTS, select Body Electrical / Smart Key / Utility / Communication Check (Digital Key Diag Mode) / Digital key back door/trunk lid outside area
Result:
A
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Refer to REMOVAL [12/2024 - ]
Result:
C
GO TO OTHER PROBLEM
Refer to PROBLEM SYMPTOMS TABLE [12/2024 - ]
Result:
B
See step 6
- Check the BLE door digital key receiver (front door outside handle assembly (for driver door)) in digital key diagnostic mode.
- CHECK ANOTHER DIGITAL KEY
- Check if there is digital key available that is already registered to the vehicle.
Result
Result Proceed to Another registered digital key is not available A Another registered digital key is available B
Result:
B
See step 9
Result:
A
See step 7
- Check if there is digital key available that is already registered to the vehicle.
- CHECK USING ANOTHER VEHICLE
- Check if another vehicle equipped with digital key system is available
Result
Result Proceed to Vehicle equipped with digital key system not available A Vehicle equipped with digital key system available B
Result:
B
See step 16
Result:
A
See step 8
- Check if another vehicle equipped with digital key system is available
- REGISTER NEW SHARE KEY
Result:
NEXT
See step 9
- CHECK ENTRY FUNCTION (DRIVER DOOR / FRONT PASSENGER DOOR / BACK DOOR)
- Using another registered digital key, check whether the entry function operates.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
OK
Entry function operates
Result
Proceed to OK NG
Result:
OK
END (PERFORM TROUBLESHOOTING ON ORIGINAL DIGITAL KEY)
Result:
NG
See step 10
- Using another registered digital key, check whether the entry function operates.
- CHECK DIGITAL KEY ECU ASSEMBLY (TERMINAL UART)
- Using an oscilloscope, check the waveform.
*a Component with harness connected
(Digital Key ECU Assembly)*b Waveform 1 *c Wakeup signal from digital key ECU assembly *d Approximately 15 ms. *e 15 to 50 ms. *f Before door lock/unlock operation using digital key *g After door lock/unlock operation using digital key - - NOTE:The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
OK
Tester Connection Condition Tool Setting Specified Condition S31-23 (UART) - Body ground All of the following conditions are met: - Ignition switch off
- Door lock/unlock operation has been not performed via digital key → performed
2 V/DIV., 20 ms./DIV. Pulse generation
(See waveform 1)Result
Result Proceed to OK (Normal Waveform) A NG (No Wakeup Signal) B NG (Normal Waveform Not Output) C NG (Stuck Low) D
Result:
B
REPLACE DIGITAL KEY ECU ASSEMBLY
Refer to REMOVAL [12/2024 - ]
Result:
C
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Refer to REMOVAL [12/2024 - ]
Result:
D
See step 15
Result:
A
See step 11
- Using an oscilloscope, check the waveform.
- REPLACE DIGITAL KEY ECU ASSEMBLY
- Replace the digital key ECU assembly with a new one.
Refer to REMOVAL [12/2024 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 12
- Replace the digital key ECU assembly with a new one.
- REGISTER DIGITAL KEY CODE
- Register the digital key code to the digital key ECU assembly.
for HEV Model: Refer to REGISTRATION [12/2024 - ]
for Gasoline Model: Refer to REGISTRATION [12/2024 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 13
- Register the digital key code to the digital key ECU assembly.
- REGISTER NEW OWNER KEY
- Register the owner key using the original digital key.
HINT:
Refer to the digital key application.
Result
Proceed to NEXT
Result:
NEXT
See step 14
- Register the owner key using the original digital key.
- CHECK ENTRY FUNCTION (DRIVER DOOR / FRONT PASSENGER DOOR / BACK DOOR)
- Using another registered digital key, check whether the entry function operates.NOTE:
- For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
- Refer to Precautions for Inspection or Registration regarding the digital key and surrounding environment.
OK
Entry function operates
Result
Proceed to OK NG
Result:
OK
END (DIGITAL KEY ECU ASSEMBLY WAS DEFECTIVE)
Result:
NG
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Refer to REMOVAL [12/2024 - ]
- Using another registered digital key, check whether the entry function operates.
- INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
- Disconnect the S31 digital key ECU assembly connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition S31-23 (UART) - Body ground Ignition switch off 11 to 14 V Result
Proceed to OK NG
Result:
OK
REPLACE DIGITAL KEY ECU ASSEMBLY
Refer to REMOVAL [12/2024 - ]
Result:
NG
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Refer to REMOVAL [12/2024 - ]
- REGISTER NEW SHARE KEY
- Take a digital key where the entry function does not operate, and register it as a share key of another vehicle equipped with the digital key system.
HINT:
Refer to the digital key application.
Result
Proceed to NEXT
Result:
NEXT
See step 17
- Take a digital key where the entry function does not operate, and register it as a share key of another vehicle equipped with the digital key system.
- CHECK ENTRY FUNCTION (DRIVER DOOR / FRONT PASSENGER DOOR / BACK DOOR)
- Using the other vehicle equipped with the digital key system, check whether the entry function operates.NOTE:
For details on the digital key detection range, refer to Precautions for Outside Vehicle Digital Key Detection Range/Diagnostic Range.
OK
The entry function operates
Result
Proceed to OK NG
Result:
OK
See step 10
Result:
NG
END (PERFORM TROUBLESHOOTING ON ORIGINAL DIGITAL KEY)
- Using the other vehicle equipped with the digital key system, check whether the entry function operates.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.