ENTRY AND START SYSTEM (for Entry Function) Room Oscillator does not Recognize Key

DESCRIPTION

If the room oscillator does not recognize a key, one of the following may be the cause: 1) communication between the indoor electrical key oscillator (for front floor) and key cannot be performed; 2) communication between the indoor electrical key oscillator (for center floor) and key cannot be performed; or 3) communication between the indoor electrical key oscillator (for rear floor) and key cannot be performed.

WIRING DIAGRAM

A0041J7E23

INSPECTION PROCEDURE

Note


  • The entry and start system (for entry function) uses a LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for entry function) after confirming that the communication system is 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.

PROCEDURE


  1. CHECK ENTRY AND START SYSTEM (for Entry Function)


    1. Check that entry lock and unlock functions can be operated at each door Click here.

      OK
      Entry lock and unlock functions operate normally.

    NG

    GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) Click here

    OK

  2. CHECK ENTRY AND START SYSTEM (for Start Function)


    1. Remove the transmitter battery of the key Click here.

    2. A00431E

      With the brake pedal depressed, touch the power switch while facing the logo side of the key to the power switch.

    3. When operating the power switch, check whether the power source mode changes.

      OK
      Power source mode changes.

      Tech Tips


      • When the key cannot be verified even though it is within the specified range, the hybrid control system start check can be performed by removing the transmitter battery from the key and holding the transmitter close to the power switch.

      • When performing the check, if the power source mode changes, there is a problem with key certification inside the cabin.


    NG

    GO TO ENTRY AND START SYSTEM (for Start Function) (Proceed to Power Source Mode does not Change to ON) Click here

    OK

  3. CHECK WAVE ENVIRONMENT


    1. Install the transmitter battery to the key Click here.

    2. Bring the key near the indoor electrical key oscillator (for front floor), and check that the hybrid control system can be started.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (for front floor), communication is not possible.

    3. Bring the key near the indoor electrical key oscillator (for center floor), and check that the hybrid control system can be started.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (for center floor), communication is not possible.

    4. Bring the key near the indoor electrical key oscillator (for rear floor), and check that the hybrid control system can be started*.

      *: If the customize setting for Ignition Available Area is not set to All, the hybrid control system will not start. Before performing this inspection, check that All has been selected Click here.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (for rear floor), communication is not possible.

      Tech Tips


      • When the key is brought near the indoor electrical key oscillator, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the operation is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      OK
      The hybrid control system starts.

    NG

    PERFORM KEY DIAGNOSTIC MODE INSPECTION Click here

    OK

    AFFECTED BY WAVE INTERFERENCE

  4. PERFORM KEY DIAGNOSTIC MODE INSPECTION


    1. A0041JJE05
      Text in Illustration
      *1 Inspection Point

      Diagnostic mode inspection (indoor electrical key oscillator (for front floor))


      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 / Utility / Key Communication Check / Overhead + Front Room.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        Tech Tips


        • Place the key on the driver or front passenger seat cushion.

        • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.

    2. A0040OYE04
      Text in Illustration
      *1 Inspection Point

      Diagnostic mode inspection (indoor electrical key oscillator (for center floor))


      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 / Utility / Key Communication Check / Overhead + Rear Room.

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        Tech Tips


        • Place the key on the rear seat cushion.

        • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.

    3. A0041I9E05
      Text in Illustration
      *1 Inspection Point
      *2 Vehicle Center

      Diagnostic mode inspection (indoor electrical key oscillator (for rear floor))


      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 / Utility / Key Communication Check / Overhead + Back Door (inside).

      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        Tech Tips


        • Place the key on the luggage area.

        • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.

        Result
        Result Proceed to
        Wireless door lock buzzer does not sound only for indoor electrical key oscillator (for front floor). A
        Wireless door lock buzzer does not sound only for indoor electrical key oscillator (for center floor). B
        Wireless door lock buzzer does not sound only for indoor electrical key oscillator (for rear floor). C
        Wireless door lock buzzer sounds for all indoor electrical key oscillators. D

    B

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR) Click here

    C

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR) Click here

    D

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A

  5. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR)


    1. Disconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the L11 indoor electrical key oscillator (for front floor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L56-7 (CLG5) - L11-1 (ANTE5) Always Below 1 Ω
      L56-8 (CG5B) - L11-3 (CLGB) Always Below 1 Ω
      L56-7 (CLG5) - Body ground Always 10 kΩ or higher
      L56-8 (CG5B) - Body ground Always 10 kΩ or higher
      L11-1 (ANTE5) - Body ground Always 10 kΩ or higher
      L11-3 (CLGB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT INDOOR ELECTRICAL KEY OSCILLATOR (for Front Floor (INPUT))


    1. Reconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Check for pulses according to the value(s) in the table below.

      Standard
      Tester Connection Condition Specified Condition
      L11-1 (ANTE5) - L11-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L11-1 (ANTE5) - L11-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  7. REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (for Front Floor)


    1. Replace the indoor electrical key oscillator (for front floor Click here.


    NEXT

  8. PERFORM KEY DIAGNOSTIC MODE INSPECTION (for Front Floor)


    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 / Utility / Key Communication Check / Overhead + Front Room.

    5. A0041JJE05
      Text in Illustration
      *1 Inspection Point

      When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      OK
      Wireless door lock buzzer sounds.

      Tech Tips


      • Place the key on the driver or front passenger seat cushion.

      • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.


    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (INDOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE)

  9. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR)


    1. Disconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the R10 indoor electrical key oscillator (for center floor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L56-24 (CLG6) - R10-1 (ANTE6) Always Below 1 Ω
      L56-25 (CG6B) - R10-3 (CLGB) Always Below 1 Ω
      L56-24 (CLG6) - Body ground Always 10 kΩ or higher
      L56-25 (CG6B) - Body ground Always 10 kΩ or higher
      R10-1 (ANTE6) - Body ground Always 10 kΩ or higher
      R10-3 (CLGB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT INDOOR ELECTRICAL KEY OSCILLATOR (for Center Floor (INPUT))


    1. Reconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Check for pulses according to the value(s) in the table below.

      Standard
      Tester Connection Condition Specified Condition
      R10-1 (ANTE6) - R10-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      R10-1 (ANTE6) - R10-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  11. REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (for Center Floor)


    1. Replace the indoor electrical key oscillator (for center floor) Click here.


    NEXT

  12. PERFORM KEY DIAGNOSTIC MODE INSPECTION (for Center Floor)


    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 / Utility / Key Communication Check / Overhead + Rear Room.

    5. A0040OYE05
      Text in Illustration
      *1 Inspection Point

      When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      OK
      Wireless door lock buzzer sounds.

      Tech Tips


      • Place the key on the driver or front passenger seat cushion.

      • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.


    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (INDOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE)

  13. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - INDOOR ELECTRICAL KEY OSCILLATOR)


    1. Disconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the R20 indoor electrical key oscillator (for rear floor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L56-26 (CLG7) - R20-1 (ANTE7) Always Below 1 Ω
      L56-27 (CG7B) - R20-3 (CLGB) Always Below 1 Ω
      L56-26 (CLG7) - Body ground Always 10 kΩ or higher
      L56-27 (CG7B) - Body ground Always 10 kΩ or higher
      R20-1 (ANTE7) - Body ground Always 10 kΩ or higher
      R20-3 (CLGB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. INSPECT INDOOR ELECTRICAL KEY OSCILLATOR (for Rear Floor (INPUT))


    1. Reconnect the L56 certification ECU (smart key ECU assembly) connector.

    2. Check for pulses according to the value(s) in the table below.

      Standard
      Tester Connection Condition Specified Condition
      R20-1 (ANTE7) - R20-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      R20-1 (ANTE7) - R20-3 (CLGB)

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

  15. REPLACE INDOOR ELECTRICAL KEY OSCILLATOR (for Rear Floor)


    1. Replace the indoor electrical key oscillator (for rear floor) Click here.


    NEXT

  16. PERFORM KEY DIAGNOSTIC MODE INSPECTION (for Rear Floor)


    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 / Utility / Key Communication Check / Overhead + Back Door (inside).

    5. A0041I9E05
      Text in Illustration
      *1 Inspection Point
      *2 Vehicle Center

      When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      OK
      Wireless door lock buzzer sounds.

      Tech Tips


      • Place the key on the driver or front passenger seat cushion.

      • If the buzzer sounds, it can be determined that the indoor electrical key oscillators are operating normally.


    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (INDOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE)