ENTRY AND START SYSTEM (for Entry Function) All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate

DESCRIPTION

When the entry operation and wireless operation of the door lock functions do not operate, a malfunction or wave interference may be occurring in either of the following: 1) the signal communication line between the door control receiver and certification ECU (smart key ECU assembly) (the line used for entry and wireless operations); or 2) the electrical key transmitter sub-assembly. If the entry lock and wireless lock operations cannot be performed, there may be electrical key transmitter sub-assembly malfunctions, wave interference or problems in the communication which is used for the entry and wireless function between the door control receiver and certification ECU (smart key ECU assembly).

WIRING DIAGRAM

A01FVDEE01

INSPECTION PROCEDURE

Note


  • The entry and start system (for Entry Function) uses the CAN communication system and LIN communication system. First inspect the communication systems by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

  • When using the GTS with the power switch off to troubleshoot:

    Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the GTS and vehicle begins.

  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

  • Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output Click here.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • Before replacing the certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU), refer to the entry and start system (for Entry Function) precaution Click here.

  • After repair, confirm that no DTCs are output by performing the "DTC Output Confirmation Operation".

  • The door control receiver has a constant voltage (5 V) supply circuit connected to terminal "+5".

  • When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal Click here (for 12 Pin Type).

  • It is necessary to perform initialization Click here after registration Click here of the transmitter IDs into the door control receiver if the door control receiver has been replaced (for 12 Pin Type).

PROCEDURE


  1. INSPECT AUXILIARY BATTERY VOLTAGE


    1. Measure the voltage of the vehicle auxiliary battery.

      Standard voltage
      11 to 14 V

      Tech Tips

      It may be possible to tell whether the vehicle auxiliary battery is discharged by operating the horn.


      • If the voltage is below 11 V, recharge or replace the vehicle auxiliary battery before proceeding.


    NEXT

  2. CHECK FOR DTC


    1. Open the driver door using the mechanical key built into the electrical key transmitter sub-assembly.

    2. Connect the GTS and check for DTCs Click here.

      Tech Tips

      When using the GTS with the power switch off to troubleshoot: Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the GTS and vehicle begins.

      OK
      DTC is not output.

    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    OK

  3. CHECK POWER DOOR LOCK CONTROL SYSTEM


    1. When the door control switch on the multiplex network master switch assembly on the driver door is operated, check that the doors unlock and lock according to the switch operation Click here.

      OK
      Door locks operate normally.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  4. CHECK KEY DIAGNOSTIC MODE


    1. Check the following antennas in the key diagnostic mode Click here.

    2. Select either channel 1 or channel 2 and inspect the key diagnostic mode for each channel.

      Tech Tips

      If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter cannot be detected by channel 2 due to a malfunction, such as wave interference.


      1. A01FVISE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for driver door) (for LHD):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for driver door), check that the wireless door lock buzzer sounds.

      2. A01FRLNE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for driver door) (for RHD):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for driver door), check that the wireless door lock buzzer sounds.

      3. A01FRLNE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for front passenger door) (for LHD):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds.

      4. A01FVISE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for front passenger door) (for RHD):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds.

      5. A01FSGHE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for rear door LH):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the rear door outside handle assembly (for rear door LH), check that the wireless door lock buzzer sounds.

      6. A01FRZIE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for rear door RH):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the rear door outside handle assembly (for rear door RH), check that the wireless door lock buzzer sounds.

      7. A01FQ8OE01
        Text in Illustration
        *a Inspection Point

        Check the No. 1 indoor electrical key antenna (front floor):

        When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.

      8. A01FRFTE01
        Text in Illustration
        *a Inspection Point

        Check the No. 2 indoor electrical key antenna (rear floor):

        When the electrical key transmitter sub-assembly is at the inspection point, check that the wireless door lock buzzer sounds.

      9. A01FQI3E01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (outside luggage):

        When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the electrical key antenna (outside luggage), check that the wireless door lock buzzer sounds.

        OK
        Wireless door lock buzzer sounds.
        Result
        Result Proceed to
        Diagnostic mode inspections fail for both channels A
        Diagnostic mode inspections succeed for both channels B
        Diagnostic mode inspection succeeds for only one of the channels C

    B

    REGISTER RECOGNITION CODE Click here

    C

    CHECK WAVE ENVIRONMENT Click here

    A

  5. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY


    1. Check if there are any other registered electrical key transmitter sub-assemblies.

      Result
      Result Proceed to
      There are no other registered electrical key transmitter sub-assemblies A
      There is another registered electrical key transmitter sub-assemblies B

    B

    CHECK ENTRY DOOR LOCK OPERATION Click here

    A

  6. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)


    1. Register a new electrical key transmitter sub-assembly.

      Tech Tips

      Refer to the Service Bulletin.


    NEXT

  7. CHECK ENTRY DOOR LOCK OPERATION


    1. Using another registered electrical key transmitter sub-assembly, check if an entry lock/unlock operation can be performed twice in succession.

      OK
      Entry lock/unlock operate normally.

    NG

    CHECK WAVE ENVIRONMENT Click here

    OK

  8. CHECK TRANSMITTER BATTERY


    1. Check the transmitter battery level of the electrical key transmitter sub-assembly that was checked first.


      1. Press and hold the lock switch of the transmitter for 5 seconds and check the number of times that the transmitter LED illuminates.

        Result
        Result Proceed to
        Transmitter LED does not illuminate when switch is pressed and held A
        Transmitter LED illuminates 3 times or more when switch is pressed and held B
        Transmitter LED illuminates once or twice but not a third time C

        Tech Tips


        • The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is being used. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low battery" item of the Data List when this voltage information indicates 2.2 V or less Click here.

        • Even if the transmitter battery is depleted, it is still possible to start the hybrid system by holding the electrical key transmitter sub-assembly against the power switch, depressing the brake pedal and pressing the power switch.


    B

    REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

    C

    REPLACE TRANSMITTER BATTERY Click here

    A

  9. INSPECT TRANSMITTER BATTERY (VOLTAGE)


    1. Inspect the transmitter battery Click here.


    NG

    REPLACE TRANSMITTER BATTERY Click here

    OK

    REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

  10. REGISTER RECOGNITION CODE


    1. Perform registration for the B code.

      Note

      In order to register the B code, confirm the entry and start system (for Entry Function) precaution Click here and refer to the Service Bulletin.


    NEXT

  11. CHECK ENTRY OPERATION


    1. Check that the door entry lock/unlock operation with the electrical key transmitter sub-assembly is possible 2 times or more consecutively.

      OK
      Operates properly.

    NG

    READ VALUE USING GTS Click here

    OK

    END

  12. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry & Start / Data List.

    5. Read the Data List according to the display on the GTS.

      Entry & Start
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      B Code B code registration status / No Regd or Regd

      No Regd: B code not registered correctly

      Regd: B code registered correctly

      		 -
      B Code Difference B code mismatch / No or Yes

      No: Communication normal

      Yes: Communication malfunction

      		 -
      Result
      Result Proceed to
      "No Regd" and "No" are displayed on the Techstream screen A
      "Regd" and "No" are displayed on the Techstream screen B
      "Regd" and "Yes" are displayed on the Techstream screen C
      "No Regd" and "Yes" are displayed on the Techstream screen D

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    C

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    D

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  13. CHECK WAVE ENVIRONMENT


    1. Bring the electrical key transmitter sub-assembly near the door control receiver and perform a wireless and entry function operation check.

      Tech Tips


      • When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.

      • If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.

      OK
      Wireless and entry functions operate normally.

    NG

    CHECK POWER MANAGEMENT CONTROL ECU Click here

    OK

    AFFECTED BY WAVE INTERFERENCE

  14. CHECK POWER MANAGEMENT CONTROL ECU


    1. Measure the voltage according to the value(s) in the table below.

      A01FRPBE06
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      		 - -

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Body Electrical / Power Source Control / Data List.

    6. Read the Data List according to the display on the GTS.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Power Supply Condition Power supply state / IG2 ON, ST ON, All OFF, IG1 ON or ACC ON

      ALL OFF: Power switch off (ACC and IG)

      ACC ON: Power switch on (ACC) (ACC relay on)

      IG1 ON: Power switch on (IG) (IG1 relay on)

      IG2 ON: Power switch on (IG) (IG2 relay on)

      ST ON: Sending hybrid system start request signal

      		 Since the IG1 and IG2 relays turn on at approximately the same time, IG1 ON may not be displayed (the IG1 relay turns on for a very short time).

    7. Measure the voltage while checking the Data List on the GTS.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      N92-2 (IG1D) - Body ground Power switch off Below 1 V
      Power switch on (ACC) Below 1 V
      Power switch on (IG) 9 V or higher
      A36-2 (IG2D) - Body ground Power switch off Below 1 V
      Power switch on (ACC) Below 1 V
      Power switch on (IG) 9 V or higher
      N92-1 (ACCD) - Body ground Power switch off Below 1 V
      Power switch on (IG) 9 V or higher
      Power switch on (ACC) 9 V or higher

      Tech Tips

      Using the GTS, measure the voltage while confirming the power source mode on the Data List.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

  15. READ VALUE USING GTS (IG SW)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry & Start / Data List.

    5. Read the Data List according to the display on the GTS.

      Entry & Start
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Ignition Switch Power switch on (IG) / ON or OFF

      ON: Power switch on (IG)

      OFF: Power switch off

      • Displays whether the IG power source signal input is on or off.

      • Use this Data List item to help determine the cause when all entry and start system /wireless functions do not operate.

      • If the electrical key transmitter sub-assembly is brought inside the vehicle and the power switch is pressed twice without depressing the brake pedal, the power switch will turn on (IG). At this time, the key ID code transmitted from the electrical key transmitter sub-assembly and the key ID code stored in the certification ECU (smart key ECU assembly) are compared, and the L code stored in the ID code box (immobiliser code ECU) and the code stored in the steering lock ECU (steering lock actuator assembly) are compared, and if all codes match, the power source mode is considered on (IG) at that time.

    NG

    CHECK RELAY CONTACT SIDE CIRCUIT

    OK

  16. READ VALUE USING GTS (ACC SW, IG SW)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ACC SW Power switch status / ON or OFF

      ON: Power switch on (ACC)

      OFF: Power switch off

      		 ON" is also displayed for this item when the power switch is on (IG).
      IG SW Power switch status / ON or OFF

      ON: Power switch to on (IG)

      OFF: Power switch off

      		 "OFF" is also displayed for this item when the power switch is on (ACC).

    NG

    TROUBLESHOOT MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    OK

  17. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - AUXILIARY BATTERY AND BODY GROUND)


    1. Disconnect the N94 and N95 certification ECU (smart key ECU assembly) connectors.

      A01FRP5E08
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Certification ECU [Smart Key ECU Assembly])

      		 - -

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N94-1 (E) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      N95-4 (CUTB) - Body ground Always 11 to 14 V
      N95-5 (+B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)


    1. for 12 Pin Type:


      1. Disconnect the N98 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the T32 door control receiver connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        N98-15 (RCO) - T32-10 (+5) Always Below 1 Ω
        N98-6 (RDAM) - T32-9 (DATA) Always Below 1 Ω
        N98-7 (CSEL) - T32-6 (CSEL) Always Below 1 Ω
        N98-5 (RCO) or T32-10 (+5) - Body ground Always 10 kΩ or higher
        N98-6 (RDAM) or T32-9 (DATA) - Body ground Always 10 kΩ or higher
        N98-7 (CSEL) or T32-6 (CSEL) - Body ground Always 10 kΩ or higher

      4. Connect the N98 certification ECU (smart key ECU assembly) connector.

    2. except 12 Pin Type:


      1. Disconnect the N98 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the T33 door control receiver connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        N98-15 (RCO) - T33-2 (+5) Always Below 1 Ω
        N98-6 (RDAM) - T33-3 (DATA) Always Below 1 Ω
        N98-7 (CSEL) - T33-5 (CSEL) Always Below 1 Ω
        N98-15 (RCO) or T33-2 (+5) - Body ground Always 10 kΩ or higher
        N98-6 (RDAM) or T33-3 (DATA) - Body ground Always 10 kΩ or higher
        N98-7 (CSEL) or T33-5 (CSEL) - Body ground Always 10 kΩ or higher

      4. Connect the N98 certification ECU (smart key ECU assembly) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. CHECK DOOR CONTROL RECEIVER


    1. for 12 Pin Type:


      1. A01FTFLE46
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Connect the door control receiver connector.

      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        T32-12 (GND) - Body ground Always Below 1 Ω

    2. except 12 Pin Type:


      1. A01FQ5JE01
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Connect the door control receiver connector.

      2. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        T33-6 (GND) - Body ground Always Below 1 Ω

    NG

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

  20. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. for 12 Pin Type:


      1. A01FTFLE47
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T32-10 (+5) - T32-12 (GND)

        Procedure:


        1. Power switch off

        2. Electrical key transmitter sub-assembly switch not pressed

        		 Below 1 V

        Procedure:


        1. Power switch off

        2. Electrical key transmitter sub-assembly switch pressed

        		 4.5 to 5.5 V
        T32-6 (CSEL) - T32-12 (GND) Power switch off and all doors closed Below 1 V → 4.4 to 6.5 V → Below 1 V
        T32-1 (IG) - T32-12 (GND) Power switch on (IG) 10 to 16 V

    2. except 12 Pin Type:


      1. A01FQ5JE02
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T33-2 (+5) - T33-6 (GND)

        Procedure:


        1. Power switch off

        2. Electrical key transmitter sub-assembly switch not pressed

        		 Below 1 V

        Procedure:


        1. Power switch off

        2. Electrical key transmitter sub-assembly switch pressed

        		 4.5 to 5.5 V
        T33-5 (CSEL) - T33-6 (GND) Power switch off and all doors closed Below 1 V → 4.4 to 6.5 V → Below 1 V

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  21. CHECK DOOR CONTROL RECEIVER


    1. for 12 Pin Type:


      1. A01FTFLE52
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T32-9 (DATA) - T32-12 (GND)

        Procedure:


        1. All doors closed

        2. All doors locked

        3. Electrical key transmitter sub-assembly switch pressed

        		 Below 1 V → 10 to 16 V → Below 1 V

    2. except 12 Pin Type:


      1. A01FQ5JE03
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T33-3 (DATA) - T33-6 (GND)

        Procedure:


        1. All doors closed

        2. All doors locked

        3. Electrical key transmitter sub-assembly switch pressed

        		 Below 1 V → 10 to 16 V → Below 1 V

    NG

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

  22. INSPECT WINDOW GLASS ANTENNA WIRE


    1. Inspect window glass antenna wire Click here.


    NG

    REPAIR WINDOW GLASS ANTENNA WIRE Click here

    OK

  23. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - AMPLIFIER ANTENNA ASSEMBLY)


    1. for 12 Pin Type:


      1. Disconnect the T51 door control receiver connector.

      2. Disconnect the T52 amplifier antenna assembly connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        T51-1 (ANT) - T52-1 Always Below 1 Ω
        T51-1 (ANT) or T52-1 - Body ground Always 10 kΩ or higher

    2. except 12 Pin Type:


      1. Disconnect the T33 door control receiver connector.

      2. Disconnect the T52 amplifier antenna assembly connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        T33-7 (ANT) - T52-1 Always Below 1 Ω
        T33-7 (ANT) or T52-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  24. CHECK AMPLIFIER ANTENNA ASSEMBLY


    1. Temporarily replace the amplifier antenna assembly with a new or known good one Click here.

    2. Check that the wireless door lock functions operate normally Click here.

      OK
      Wireless door lock functions operate normally.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here

    OK

    END (AMPLIFIER ANTENNA ASSEMBLY WAS DEFECTIVE)

  25. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Temporarily replace the certification ECU (smart key ECU assembly) with a new one.

      Tech Tips

      Refer to the Service Bulletin.


    NEXT

  26. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM


    1. Check that the wireless door lock functions operate normally Click here.

      OK
      Wireless door lock functions operate normally.

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    OK

    END (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] WAS DEFECTIVE)

  27. CHECK WAVE ENVIRONMENT


    1. Bring the electrical key transmitter sub-assembly that was checked first near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck the key diagnostic mode Click here.

      Tech Tips


      • When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.

      • If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.

      OK
      Wireless door lock buzzer sounds.

    NG

    CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

    OK

    AFFECTED BY WAVE INTERFERENCE

  28. CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY


    1. Check if there are any other registered electrical key transmitter sub-assemblies.

      Result
      Result Proceed to
      There are no other registered electrical key transmitter sub-assemblies A
      There is another registered electrical key transmitter sub-assemblies B

    B

    CHECK WAVE ENVIRONMENT Click here

    A

  29. ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY REGISTRATION (NEW ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY)


    1. Register a new electrical key transmitter sub-assembly.

      Tech Tips

      Refer to the Service Bulletin.


    NEXT

  30. CHECK WAVE ENVIRONMENT


    1. Bring another registered electrical key transmitter sub-assembly near the door control receiver and select the failed channel (the channel in which the buzzer did not sound) to recheck the key diagnostic mode Click here.

      Tech Tips


      • When the electrical key transmitter sub-assembly is brought near the door control receiver, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the inspection result is that the problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.

      • If a tool for checking electric waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.

      OK
      Wireless door lock buzzer sounds.

    NG

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER) Click here

    OK

    END (ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY WAS DEFECTIVE)

  31. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)


    1. for 12 Pin Type:


      1. Disconnect the N98 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the T32 door control receiver connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        N98-7 (CSEL) - T32-6 (CSEL) Always Below 1 Ω
        N98-7 (CSEL) or T32-6 (CSEL) - Body ground Always 10 kΩ or higher

      4. Connect the N98 certification ECU (smart key ECU assembly) connector.

    2. except 12 Pin Type:


      1. Disconnect the N98 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the T33 door control receiver connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        N98-7 (CSEL) - T33-5 (CSEL) Always Below 1 Ω
        N98-7 (CSEL) or T33-5 (CSEL) - Body ground Always 10 kΩ or higher

      4. Connect the N98 certification ECU (smart key ECU assembly) connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  32. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. for 12 Pin Type:


      1. A01FTFLE48
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Connect the T32 door control receiver connector.

      2. Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T32-6 (CSEL) - T32-12 (GND) Power switch off and all doors closed Below 1 V → 4.5 to 6 V → Below 1 V

    2. except 12 Pin Type:


      1. A01FQ5JE05
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Connect the T33 door control receiver connector.

      2. Measure the voltage according to the value(s) in the table below.

        Standard Voltage
        Tester Connection Condition Specified Condition
        T33-5 (CSEL) - T33-6 (GND) Power switch off and all doors closed Below 1 V → 4.5 to 6 V → Below 1 V

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  33. CHECK DOOR CONTROL RECEIVER


    1. for 12 Pin Type:


      1. A01FTFLE50
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Tech Tips

        Inspection should be performed while the electrical key antenna check in key diagnostic mode is being performed on the failed channel (the channel in which the buzzer did not sound).

        Standard Voltage
        Tester Connection Condition Specified Condition
        T32-9 (DATA) - T32-12 (GND)

        Procedure:


        1. All doors closed

        2. All doors locked

        3. Electrical key transmitter sub-assembly switch pressed*

        		 Below 1 V → 10 to 16 V → Below 1 V

        • *: While the electrical key antennas are being inspected in key diagnostic mode Click here.

    2. except 12 Pin Type:


      1. A01FQ5JE03
        Text in Illustration
        *a

        Component with harness connected

        (Door Control Receiver)

        Measure the voltage according to the value(s) in the table below.

        Tech Tips

        Inspection should be performed while the electrical key antenna check in key diagnostic mode is being performed on the failed channel (the channel in which the buzzer did not sound).

        Standard Voltage
        Tester Connection Condition Specified Condition
        T33-3 (DATA) - T33-6 (GND)

        Procedure:


        1. All doors closed

        2. All doors locked

        3. Electrical key transmitter sub-assembly switch pressed*

        		 Below 1 V → 10 to 16 V → Below 1 V

        • *: While the electrical key antennas are being inspected in key diagnostic mode Click here.


    NG

    REPLACE DOOR CONTROL RECEIVER Click here

    OK

  34. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Temporarily replace the certification ECU (smart key ECU assembly) with a new one.

      Tech Tips

      Refer to the Service Bulletin.


    NEXT

  35. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM


    1. Check that the wireless door lock functions operate normally Click here.

      OK
      Wireless door lock functions operate normally.

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    OK

    END (CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] WAS DEFECTIVE)