ENTRY AND START SYSTEM Driver Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION

When the driver door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock system, 2) driver side door electrical key oscillator, or 3) certification ECU.

WIRING DIAGRAM

A001DBKE21
A001DBKE22

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the master switch assembly's door control switch is operated, check that the locked doors unlock.

      Result
      Result Proceed to
      Door locks operate normally OK
      Door locks do not operate normally NG

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION SWITCH)


    1. Using the intelligent tester, read the Data List.

      Driver Door (Front door ECU LH*1) (Front door ECU RH*2)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Lock Position SW Driver side door lock position switch signal / ON or OFF

      ON: Driver side door is unlocked

      OFF: Driver side door is locked

      		 -

      Tech Tips

      *1: for LHD

      *2: for RHD

      OK
      On intelligent tester screen, item changes between ON and OFF according to above chart.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK/UNLOCK Functions do not Operate) Click here

    OK

  3. READ VALUE USING INTELLIGENT TESTER (OUTSIDE HANDLE TRIGGER SW, ENTRY SENSOR)


    1. Using the intelligent tester, read the Data List.

      Driver Door (Front door ECU LH*1) (Front door ECU RH*2)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Outside Handle Trigger SW Driver side door outside handle lock switch / ON or OFF

      ON: Driver side door outside handle lock switch is pushed

      OFF: Driver side door outside handle lock switch is not pushed

      		 -
      Entry Sensor Driver side door touch sensor / ON or OFF

      ON: Driver side door sensor is touched

      OFF: Driver side door sensor is not touched

      		 -

      Tech Tips

      *1: for LHD

      *2: for RHD

      Result
      Result Proceed to
      Display does not change according to manual operation A
      Display changes according to manual operation B

    B

    CHECK CHECK WAVE ENVIRONMENT Click here

    A

  4. CHECK FRONT DOOR ECU

    A001AGBE01
    for LHD
    *1 Component with harness connected: (Front Door ECU LH)
    *2 OSCB
    *3 OSCE

    1. for LHD:


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

        Standard voltage
        Tester Connection Condition Specified Condition
        N10-12 (OSCB) - N10-19 (OSCE) Always 11 to 14 V
      A001BQCE01
      for RHD
      *1 Component with harness connected: (Front Door ECU RH)
      *2 OSCB
      *3 OSCE

    2. for RHD:


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

        Standard voltage
        Tester Connection Condition Specified Condition
        N1-12 (OSCB) - N1-19 (OSCE) Always 11 to 14 V

    NG

    REPLACE FRONT DOOR ECU Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR ECU)

    A001D7RE02

    1. for LHD:


      1. Disconnect the N22 oscillator connector.

      2. Disconnect the N10 ECU connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N22-1 (B) - N10-12 (OSCB) Always Below 1 Ω
        N22-6 (SENS) - N10-14 (SENS) Always Below 1 Ω
        N22-7 (GND) - N10-19 (OSCE) Always Below 1 Ω
        N22-1 (B) - Body ground Always 10 kΩ or higher
        N22-6 (SENS) - Body ground Always 10 kΩ or higher
        N22-7 (GND) - Body ground Always 10 kΩ or higher
      A0019DBE02

    2. for RHD:


      1. Disconnect the N20 oscillator connector.

      2. Disconnect the N1 ECU connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N20-1 (B) - N1-12 (OSCB) Always Below 1 Ω
        N20-6 (SENS) - N1-14 (SENS) Always Below 1 Ω
        N20-7 (GND) - N1-19 (OSCE) Always Below 1 Ω
        N20-1 (B) - Body ground Always 10 kΩ or higher
        N20-6 (SENS) - Body ground Always 10 kΩ or higher
        N20-7 (GND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE)

    A001DADE01
    for LHD
    *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
    *2 Front view of wire harness connector: (to Front Door Outside Handle LH)

    1. for LHD:


      1. Disconnect the N22 oscillator connector.

      2. Disconnect the N23 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N22-2 (SGT2) - N23-6 (SGT1) Always Below 1 Ω
        N22-9 (TRG-) - N23-1 (TRG-) Always Below 1 Ω
        N22-2 (SGT2) - Body ground Always 10 kΩ or higher
        N22-9 (TRG-) - Body ground Always 10 kΩ or higher
      A001EI7E01
      for RHD
      *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
      *2 Front view of wire harness connector: (to Front Door Outside Handle RH)

    2. for RHD:


      1. Disconnect the N20 oscillator connector.

      2. Disconnect the N21 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N20-2 (SGT2) - N21-6 (SGT1) Always Below 1 Ω
        N20-9 (TRG-) - N21-1 (TRG-) Always Below 1 Ω
        N20-2 (SGT2) - Body ground Always 10 kΩ or higher
        N20-9 (TRG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU - FRONT DOOR OUTSIDE HANDLE)

    A001DMJE02
    for LHD
    *1 Front view of wire harness connector: (to Front Door ECU LH)
    *2 Front view of wire harness connector: (to Front Door Outside Handle LH)

    1. for LHD:


      1. Disconnect the N10 ECU connector.

      2. Disconnect the N23 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N10-20 (TRG+) - N23-3 (TRG+) Always Below 1 Ω
        N10-20 (TRG+) - Body ground Always 10 kΩ or higher
      A001BQME02
      for RHD
      *1 Front view of wire harness connector: (to Front Door ECU RH)
      *2 Front view of wire harness connector: (to Front Door Outside Handle RH)

    2. for RHD:


      1. Disconnect the N1 ECU connector.

      2. Disconnect the N21 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N1-20 (TRG+) - N21-3 (TRG+) Always Below 1 Ω
        N1-20 (TRG+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)


    1. Replace the door electrical key oscillator with a new one or normally functioning one Click here.

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

    NG

  9. CHECK FRONT DOOR OUTSIDE HANDLE (OPERATION)


    1. Replace the front door outside handle LH*1 or RH*2 with a new one or normally functioning one Click here.

      Tech Tips

      *1: for LHD

      *2: for RHD

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (FRONT DOOR OUTSIDE HANDLE IS DEFECTIVE)

    NG

    REPLACE FRONT DOOR ECU Click here

  10. CHECK CHECK WAVE ENVIRONMENT


    1. A001CKAE02
      *1 Approximately 0.3 m (0.9 ft.)

      Bring the electrical key transmitter near the driver door outside handle, and perform a driver door entry lock and unlock operation check.

      Note

      If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.

      Tech Tips


      • When the electrical key transmitter is brought near the driver door outside handle, 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 operation check 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.

      • On opposite side for RHD vehicle.

      Result
      Result Proceed to
      Operation check fails A
      Operation check is normal B

    B

    AFFECTED BY WAVE INTERFERENCE

    A

  11. KEY DIAGNOSTIC MODE


    1. A001CKAE15
      *1 0.7 to 1.0 m (2.3 to 3.3 ft.)

      Diagnostic mode inspection (driver door outside oscillator)

      Tech Tips

      On opposite side for RHD vehicle.


      1. Connect the intelligent tester to the DLC3.

      2. Turn the engine switch on (IG).

      3. Turn the intelligent tester on.

      4. Enter the following menus:


        1. Intelligent tester - Select: Body / Entry & Start / Key Communication Check / Overhead + Driver Side /

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

        Tech Tips

        If the buzzer sounds, it can be determined that the driver seat outside transmitter is operating normally.

        OK
        Wireless door lock buzzer sounds

    OK

    END (CERTIFICATION ECU IS DEFECTIVE)

    NG

  12. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - CERTIFICATION ECU)

    A0019HHE02
    for LHD
    *1 Front view of wire harness connector: (to Certification ECU)
    *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    1. for LHD:


      1. Disconnect the L15 ECU connector.

      2. Disconnect the N22 oscillator connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        L15-34 (CG1B) - N22-5 (CLGB) Always Below 1 Ω
        L15-33 (CLG1) - N22-10 (CLG) Always Below 1 Ω
        L15-34 (CG1B) - Body ground Always 10 kΩ or higher
        L15-33 (CLG1) - Body ground Always 10 kΩ or higher
      A001AF2E02
      for RHD
      *1 Front view of wire harness connector: (to Certification ECU)
      *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    2. for RHD:


      1. Disconnect the L15 ECU connector.

      2. Disconnect the N20 oscillator connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        L15-34 (CG1B) - N20-5 (CLGB) Always Below 1 Ω
        L15-33 (CLG1) - N20-10 (CLG) Always Below 1 Ω
        L15-34 (CG1B) - Body ground Always 10 kΩ or higher
        L15-33 (CLG1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR ECU)

    A0019TSE02
    for LHD
    *1 Front view of wire harness connector: (to Front Door ECU LH)
    *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    1. for LHD:


      1. Disconnect the N10 ECU connector.

      2. Disconnect the N22 oscillator connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N10-15 (SEL) - N22-4 (SEL) Always Below 1 Ω
        N10-15 (SEL) - Body ground Always 10 kΩ or higher
      A001CXNE02
      for RHD
      *1 Front view of wire harness connector: (to Front Door ECU RH)
      *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    2. for RHD:


      1. Disconnect the N1 ECU connector.

      2. Disconnect the N20 oscillator connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N1-15 (SEL) - N20-4 (SEL) Always Below 1 Ω
        N1-15 (SEL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE)

    A001D24E01
    for LHD
    *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
    *2 Front view of wire harness connector: (to Front Door Outside Handle LH)

    1. for LHD:


      1. Disconnect the N22 oscillator connector.

      2. Disconnect the N23 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N22-3 (ANT1) - N23-5 (ANT1) Always Below 1 Ω
        N22-8 (ANT2) - N23-2 (ANT2) Always Below 1 Ω
        N22-3 (ANT1) - Body ground Always 10 kΩ or higher
        N22-8 (ANT2) - Body ground Always 10 kΩ or higher
      A001E5WE01
      for RHD
      *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
      *2 Front view of wire harness connector: (to Rear Door Outside Handle RH)

    2. for RHD:


      1. Disconnect the N20 oscillator connector.

      2. Disconnect the N21 handle connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        N20-3 (ANT1) - N21-5 (ANT2) Always Below 1 Ω
        N20-8 (ANT2) - N21-2 (ANT1) Always Below 1 Ω
        N20-3 (ANT1) - Body ground Always 10 kΩ or higher
        N20-8 (ANT2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)


    1. Replace the door electrical key oscillator with a new one or normally functioning one Click here.

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

    NG

  16. CHECK FRONT DOOR OUTSIDE HANDLE (OPERATION)


    1. Replace the front door outside handle LH*1 or RH*2 with a new one or normally functioning one Click here.

      Tech Tips

      *1: for LHD

      *2: for RHD

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (FRONT DOOR OUTSIDE HANDLE IS DEFECTIVE)

    NG

  17. CHECK FRONT DOOR ECU (OPERATION)


    1. Replace the front door ECU LH*1 or RH*2 with a new one or normally functioning one Click here.

      Tech Tips

      *1: for LHD

      *2: for RHD

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (FRONT DOOR ECU IS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU