SMART KEY 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

A01HUIOE05
A01HT23E05

INSPECTION PROCEDURE

Note


  • The smart key 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 smart key system (for Entry Function) after confirming that the communication systems are functioning properly.

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

    Connect the Techstream to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the Techstream 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), refer to the smart key 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 Techstream and write them down before removal Click here.*

  • It is necessary to perform registration Click here of the transmitter IDs into the door control receiver if the door control receiver has been replaced.*

*: w/ Tire Pressure Warning System

PROCEDURE


  1. INSPECT AUXILIARY BATTERY VOLTAGE


    1. Measure the voltage of the vehicle auxiliary battery with the power switch off.

      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 Techstream and check for DTCs Click here.

      Tech Tips

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


    1. Check the system provided (multi-channel system or single channel system).

      Result
      Result Proceed to
      Except Korea (multi-channel system) A
      for Korea (single channel system) B

    B

    CHECK ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

    A

  5. 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. A01HUPEE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

        Check the electrical key antenna (for driver door):

        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. A01HV7RE01
        Text in Illustration
        *a 0.7 to 1 m (2.30 to 3.28 ft.)

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

        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.

      3. A01HUDKE01
        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.

      4. A01HSPNE01
        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.

      5. A01HULFE01
        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

    CHECK WAVE ENVIRONMENT Click here

    C

    CHECK WAVE ENVIRONMENT Click here

    A

  6. 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

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


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


    NEXT

  8. 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

  9. 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

  10. INSPECT TRANSMITTER BATTERY (VOLTAGE)


    1. Inspect the transmitter battery


      1. A01HVDDE01
        Text in Illustration
        *A Type A
        *B Type B
        *1 Lead Wire

        Remove the transmitter battery from the electrical key transmitter sub-assembly that does not operate Click here.

      2. Attach a lead wire (0.60 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative terminal.

        Note

        Do not wrap the lead wire around a terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the transmitter battery will not be able to be installed correctly.

      3. Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.

      4. A01HWA9E01
        Text in Illustration
        *A Type A
        *B Type B
        *1 GND

        Measure the voltage of the transmitter battery.

        Tech Tips


        • When measuring the transmitter battery voltage, bring the electrical key transmitter sub-assembly within the lock entry operating range while operating the lock sensor of a door handle to perform the measurement.

        • Perform the measurement when the key is at room temperature.

        • The key sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. When this voltage is 2.2 V or less the Data List item "Key Low Battery" displays "Yes". Click here

        Standard Voltage
        Tester Connection Condition Specified Condition
        Transmitter battery positive (+) - Transmitter battery negative (-) Power switch off, all doors closed and lock sensor touched 2.3 to 3.2 V

    NG

    REPLACE TRANSMITTER BATTERY Click here

    OK

    REPLACE ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY Click here

  11. 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.
      Result
      Result Proceed to
      OK A
      NG (w/ Tire Pressure Warning System) B
      NG (w/o Tire Pressure Warning System) C

    B

    CHECK POWER MANAGEMENT CONTROL ECU Click here

    C

    READ VALUE USING TECHSTREAM (ACC SW, IG SW) Click here

    A

    AFFECTED BY WAVE INTERFERENCE

  12. CHECK POWER MANAGEMENT CONTROL ECU


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

      A01HU5RE02
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      		 - -

    2. Connect the Techstream to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the Techstream on.

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

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

      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 Techstream.

      Standard Voltage
      Tester Connection Condition Specified Condition
      I4-2 (IG1D) - Body ground Power switch off Below 1 V
      Power switch on (ACC) Below 1 V
      Power switch on (IG) 9 V or higher
      A39-2 (IG2D) - Body ground Power switch off Below 1 V
      Power switch on (ACC) Below 1 V
      Power switch on (IG) 9 V or higher
      I4-1 (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 Techstream, measure the voltage while confirming the power source mode on the Data List.


    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU) Click here

    OK

  13. READ VALUE USING TECHSTREAM (IG SW)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

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

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

      Smart Key
      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 smart key 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 certification ECU (smart key ECU assembly) 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

  14. READ VALUE USING TECHSTREAM (ACC SW, IG SW)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

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

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

      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

      		 -
      IG SW Power switch status / ON or OFF

      ON: Power switch to on (IG)

      OFF: Power switch off

      		 -

      Tech Tips

      If the certification ECU (smart key ECU assembly) misjudges that the power source is on even though the power source is off for any reason, the entry lock/unlock functions stop.

      OK
      The main body ECU (multiplex network body ECU) judges properly that the power source is off when the power source is off.

    NG

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

    OK

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


    1. Disconnect the I86 and I87 certification ECU (smart key ECU assembly) connectors.

      A01HT5SE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I86-1 (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
      I87-4 (CUTB) - Body ground Power switch off 11 to 14 V
      I87-5 (+B) - Body ground Power switch off 11 to 14 V
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))

      		 - -

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. for Korea:


      1. Disconnect the O2 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the O25 door control receiver connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O2-15 (RCO) - O25-4 (+5) Always Below 1 Ω
        O2-6 (RDAM) - O25-5 (DATA) Always Below 1 Ω
        O2-7 (CSEL) - O25-2 (CSEL) Always Below 1 Ω
        O2-15 (RCO) or O25-4 (+5) - Body ground Always 10 kΩ or higher
        O2-6 (RDAM) or O25-5 (DATA) - Body ground Always 10 kΩ or higher
        O2-7 (CSEL) or O25-2 (CSEL) - Body ground Always 10 kΩ or higher

    2. Except Korea:


      1. Disconnect the O2 certification ECU (smart key ECU assembly) connector.

      2. Disconnect the O33*1 or O38*2 door control receiver connector.

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


        • *1: w/ Tire Pressure Warning System

        • *2: w/o Tire Pressure Warning System

        Standard Resistance
        w/ Tire Pressure Warning System
        Tester Connection Condition Specified Condition
        O2-15 (RCO) - O33-10 (+5) Always Below 1 Ω
        O2-6 (RDAM) - O33-9 (DATA) Always Below 1 Ω
        O2-7 (CSEL) - O33-6 (CSEL) Always Below 1 Ω
        O2-15 (RCO) or O33-10 (+5) - Body ground Always 10 kΩ or higher
        O2-6 (RDAM) or O33-9 (DATA) - Body ground Always 10 kΩ or higher
        O2-7 (CSEL) or O33-6 (CSEL) - Body ground Always 10 kΩ or higher
        Standard Resistance
        w/o Tire Pressure Warning System
        Tester Connection Condition Specified Condition
        O2-15 (RCO) - O38-10 (+5) Always Below 1 Ω
        O2-6 (RDAM) - O38-9 (DATA) Always Below 1 Ω
        O2-7 (CSEL) - O38-6 (CSEL) Always Below 1 Ω
        O2-15 (RCO) or O38-10 (+5) - Body ground Always 10 kΩ or higher
        O2-6 (RDAM) or O38-9 (DATA) - Body ground Always 10 kΩ or higher
        O2-7 (CSEL) or O38-6 (CSEL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. CHECK DOOR CONTROL RECEIVER


    1. A01HUL0E05
      Text in Illustration
      *A for Korea
      *B except Korea and w/ Tire Pressure Warning System
      *C except Korea and w/o Tire Pressure Warning System
      *a

      Component with harness connected

      (Door Control Receiver)

      Connect the O25*1, O33*2 or O38*3 door control receiver connector.

    2. Connect the O2 certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O25-1 (GND)*1 - Body ground Always Below 1 Ω
      O33-12 (GND)*2 - Body ground
      O38-12 (GND)*3 - Body ground

      • *1: for Korea

      • *2: except Korea and w/ Tire Pressure Warning System

      • *3: except Korea and w/o Tire Pressure Warning System

      Result
      Result Proceed to
      OK A
      NG (w/o Tire Pressure Warning System) B
      NG (w/ Tire Pressure Warning System) C

    B

    REPLACE DOOR CONTROL RECEIVER Click here

    C

    REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY Click here

    A

  18. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. for Korea:


      1. Connect the O2 certification ECU (smart key ECU assembly) connector.

      2. Connect the O25 door control receiver connector.

      3. A01HSC2E17
        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
        O25-4 (+5) - O25-1 (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

    2. Except Korea and w/o Tire Pressure Warning System:


      1. Connect the O2 certification ECU (smart key ECU assembly) connector.

      2. Connect the O38 door control receiver connector.

      3. A01HU5JE24
        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
        O38-10 (+5) - O38-12 (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
        O38-6 (CSEL) - O38-12 (GND) Power switch off and all doors closed Below 1 V → 4.4 to 6.5 V → Below 1 V

    3. Except Korea and w/ Tire Pressure Warning System:


      1. Connect the O2 certification ECU (smart key ECU assembly) connector.

      2. Connect the O33 door control receiver connector.

      3. A01HU5JE20
        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
        O33-10 (+5) - O33-12 (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
        O33-6 (CSEL) - O33-12 (GND) Power switch off and all doors closed Below 1 V → 4.4 to 6.5 V → Below 1 V
        O33-1 (IG) - O33-12 (GND) Power switch on (IG) 10 to 16 V

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU) Click here

    OK

  19. CHECK DOOR CONTROL RECEIVER


    1. for Korea:


      1. Connect the O2 certification ECU (smart key ECU assembly) connector.

      2. Connect the O25 door control receiver connector.

      3. A01HSC2E18
        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
        O25-5 (DATA) - O25-1 (GND)

        Procedure:


        1. All doors closed

        2. All doors locked

        3. Electrical key transmitter sub-assembly switch pressed

        		 Below 1 V → 11 to 14 V → Below 1 V
        O25-2 (CSEL) - O25-1 (GND)

        Procedure:


        1. Power switch off

        2. All doors closed

        		 Below 1 V → 4.4 to 6.5 V → Below 1 V

    2. Except Korea:


      1. Connect the O2 certification ECU (smart key ECU assembly) connector.

      2. Connect the O33*1 or O38*2 door control receiver connector.

      3. A01HU5JE25
        Text in Illustration
        *A w/ Tire Pressure Warning System
        *B w/o Tire Pressure Warning System
        *a

        Component with harness connected

        (Door Control Receiver)

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


        • *1: w/ Tire Pressure Warning System

        • *2: w/o Tire Pressure Warning System

        Standard Voltage
        w/ Tire Pressure Warning System
        Tester Connection Condition Specified Condition
        O33-9 (DATA) - O33-12 (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
        O33-6 (CSEL) - O33-12 (GND)

        Procedure:


        1. Power switch off

        2. All doors closed

        		 Below 1 V → 4.5 to 6 V → Below 1 V
        Standard Voltage
        w/o Tire Pressure Warning System
        Tester Connection Condition Specified Condition
        O38-9 (DATA) - O38-12 (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
        O38-6 (CSEL) - O38-12 (GND)

        Procedure:


        1. Power switch off

        2. All doors closed

        		 Below 1 V → 4.5 to 6 V → Below 1 V
        Result
        Result Proceed to
        OK A
        NG (w/o Tire Pressure Warning System) B
        NG (w/ Tire Pressure Warning System) C

    B

    REPLACE DOOR CONTROL RECEIVER Click here

    C

    REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY Click here

    A

  20. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


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

      Tech Tips



    NEXT

  21. 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)

  22. 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

  23. 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 KEY DIAGNOSTIC MODE Click here

    A

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


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


    NEXT

  25. CHECK KEY DIAGNOSTIC MODE


    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.

      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)

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


    1. Disconnect the O2 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the O33*1 or O38*2 door control receiver connector.

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


      • *1: w/ Tire Pressure Warning System

      • *2: w/o Tire Pressure Warning System

      Standard Resistance
      w/ Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O2-7 (CSEL) - O33-6 (CSEL) Always Below 1 Ω
      O2-7 (CSEL) or O33-6 (CSEL) - Body ground Always 10 kΩ or higher
      Standard Resistance
      w/o Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O2-7 (CSEL) - O38-6 (CSEL) Always Below 1 Ω
      O2-7 (CSEL) or O38-6 (CSEL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  27. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Connect the O2 certification ECU (smart key ECU assembly) connector.

    2. Connect the O33*1 or O38*2 door control receiver connector.

    3. A01HU5JE26
      Text in Illustration
      *A w/ Tire Pressure Warning System
      *B w/o Tire Pressure Warning System
      *a

      Component with harness connected

      (Door Control Receiver)

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


      • *1: w/ Tire Pressure Warning System

      • *2: w/o Tire Pressure Warning System

      Standard Voltage
      w/ Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O33-6 (CSEL) - O33-12 (GND) Power switch off and all doors closed Below 1 V → 4.5 to 6 V → Below 1 V
      Standard Voltage
      w/o Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O38-6 (CSEL) - O38-12 (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) Click here

    OK

  28. CHECK DOOR CONTROL RECEIVER


    1. Connect the O2 certification ECU (smart key ECU assembly) connector.

    2. Connect the O33*1 or O38*2 door control receiver connector.

    3. A01HU5JE27
      Text in Illustration
      *A w/ Tire Pressure Warning System
      *B w/o Tire Pressure Warning System
      *a

      Component with harness connected

      (Door Control Receiver)

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


      • *1: w/ Tire Pressure Warning System

      • *2: w/o Tire Pressure Warning System

      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
      w/ Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O33-9 (DATA) - O33-12 (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
      Standard Voltage
      w/o Tire Pressure Warning System
      Tester Connection Condition Specified Condition
      O38-9 (DATA) - O38-12 (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.

      Result
      Result Proceed to
      OK A
      NG (w/o Tire Pressure Warning System) B
      NG (w/ Tire Pressure Warning System) C

    B

    REPLACE DOOR CONTROL RECEIVER Click here

    C

    REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY Click here

    A

  29. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


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

      Tech Tips



    NEXT

  30. 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)