ENTRY AND START SYSTEM Rear Door LH Entry Lock and Unlock Functions do not Operate

DESCRIPTION

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

WIRING DIAGRAM

A000YTCE28
A000YTCE29

CAUTION / NOTICE / HINT

Note

Before performing the inspection, check that there are no problems related to the "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".

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 Click here.

      OK
      Locked doors unlock.

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (LOCK POSITION SW)


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

      Rear Left Door
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Lock Position SW Rear LH side door lock position switch signal / ON or OFF

      ON: Rear side door LH is unlocked

      OFF: Rear side door LH is locked

      		 -
      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 Rear Door LH LOCK/UNLOCK Functions do not Operate) Click here

    OK

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


    1. Using the intelligent tester read the Data List Click here.

      Rear Left Door
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Entry Sensor Rear LH side door touch sensor / ON or OFF

      ON: Rear side door sensor LH is touched

      OFF: Rear side door sensor LH is not touched

      		 -
      Outside Handle Trigger SW Rear LH side door outside handle lock switch / ON or OFF

      ON: Rear side door outside handle lock switch LH is pushed

      OFF: Rear side door outside handle lock switch LH is not pushed

      		 -

    NG

    CHECK REAR DOOR ECU LH Click here

    OK

  4. CHECK WAVE ENVIRONMENT


    1. A000V65E05
      *1 Approximately 0.3 m (0.984 ft.)

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

      Note

      If the key is brought within 0.2 m (0.656 ft) of the door handle, communication is not possible.

      Tech Tips


      • When the electrical key transmitter is brought near the rear left passenger 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.

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

    B

    AFFECTED BY WAVE INTERFERENCE

    A

  5. KEY DIAGNOSTIC MODE


    1. A000V65E06
      *1 0.7 to 1.0 m (2.30 to 3.28 ft.)

      Diagnostic mode inspection door electrical key oscillator


      1. Connect the intelligent tester to the DLC3.

      2. Turn the power switch ON (IG).

      3. Turn the intelligent tester on.

      4. Enter the following menus:

        for LHD

        Select: Body Electrical / Entry&Start / Key Communication Check /Overhead + Driver Side Rear.

        for RHD

        Select: Body Electrical / Entry&Start / Key Communication Check /Overhead + Passenger Side Rear.

      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 rear left seat outside transmitter is operating normally.

        • *: For Europe and China, the wireless door lock buzzer does not sound.

        OK
        Wireless door lock buzzer sounds

    OK

    END (CERTIFICATION ECU IS DEFECTIVE)

    NG

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

    A000TFVE02

    1. Disconnect the L16 ECU connector.

    2. Disconnect the O25 oscillator connector.

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

      Standard resistance
      for LHD
      Tester Connection Condition Specified Condition
      L16-9 (CG3B) - O25-5 (CLGB) Always Below 1 Ω
      L16-8 (CLG3) - O25-10 (CLG) Always Below 1 Ω
      O25-5 (CLGB) - Body ground Always 10 kΩ or higher
      O25-10 (CLG) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      L16-11 (CG4B) - O25-5 (CLGB) Always Below 1 Ω
      L16-10 (CLG4) - O25-10 (CLG) Always Below 1 Ω
      O25-5 (CLGB) - Body ground Always 10 kΩ or higher
      O25-10 (CLG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR)

    A000YP9E02
    *1 Front view of wire harness connector: (to Rear Door ECU LH)
    *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    1. Disconnect the O14 ECU connector.

    2. Disconnect the O25 oscillator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O14-16 (SEL) - O25-4 (SEL) Always Below 1 Ω
      O25-4 (SEL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH)

    A000UXIE02
    *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
    *2 Front view of wire harness connector: (to Rear Door Outside Handle LH)

    1. Disconnect the O25 oscillator connector.

    2. Disconnect the O26 handle connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O25-3 (ANT7) - O26-5 (ANT7) Always Below 1 Ω
      O25-8 (ANT8) - O26-2 (ANT8) Always Below 1 Ω
      O25-3 (ANT7) - Body ground Always 10 kΩ or higher
      O25-8 (ANT8) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)


    1. For Standard Body :


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

    2. For Long Body :


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

    3. Check that the entry function operates normally Click here.

      OK
      Operates normally

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

    NG

  10. CHECK REAR DOOR OUTSIDE HANDLE LH (OPERATION)


    1. For Standard Body :


      1. Replace the rear door outside handle LH with a new one or normally functioning one Click here.

    2. For Long Body :


      1. Replace the rear door outside handle LH with a new one or normally functioning one Click here.

    3. Check that the entry function operates normally Click here.

      OK
      Operates normally

    OK

    END (REAR DOOR OUTSIDE HANDLE LH IS DEFECTIVE)

    NG

  11. CHECK REAR DOOR ECU LH (OPERATION)


    1. For Standard Body :


      1. Replace the rear door ECU LH with a new one or normally functioning one Click here.

    2. For Long Body :


      1. Replace the rear door ECU LH with a new one or normally functioning one Click here.

    3. Check that the entry function operates normally Click here.

      OK
      Operates normally

    OK

    END (REAR DOOR ECU LH IS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU

  12. CHECK REAR DOOR ECU LH

    A000W2VE01
    *1 Component with harness connected: (Rear Door ECU LH)
    *2 OSCE
    *3 OSCB

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

      Standard voltage
      Tester Connection Condition Specified Condition
      O14-12 (OSCB) - O14-15 (OSCE) Always 11 to 14 V
      Result
      Result Proceed to
      OK A
      NG (for Standard Body) B
      NG (for Long Body) C

    B

    REPLACE REAR DOOR ECU LH Click here

    C

    REPLACE REAR DOOR ECU LH Click here

    A

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

    A000U1KE02

    1. Disconnect the O14 ECU connector.

    2. Disconnect the O25 oscillator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O14-12 (OSCB) - O25-1 (B) Always Below 1 Ω
      O14-14 (SENS) - O25-6 (SENS) Always Below 1 Ω
      O14-15 (OSCE) - O25-7 (GND) Always Below 1 Ω
      O25-1 (B) - Body ground Always 10 kΩ or higher
      O25-6 (SENS) - Body ground Always 10 kΩ or higher
      O25-7 (GND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    A000VJDE02
    *1 Front view of wire harness connector: (to Door Electrical Key Oscillator)
    *2 Front view of wire harness connector: (to Rear Door Outside Handle LH)

    1. Disconnect the O25 oscillator connector.

    2. Disconnect the O26 handle connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O25-2 (SGT8) - O26-6 (SGT7) Always Below 1 Ω
      O25-9 (TRG-) - O26-1 (TRG-) Always Below 1 Ω
      O25-2 (SGT8) - Body ground Always 10 kΩ or higher
      O25-9 (TRG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH)

    A000XKCE02
    *1 Front view of wire harness connector: (to Rear Door ECU LH)
    *2 Front view of wire harness connector: (to Rear Door Outside Handle LH)

    1. Disconnect the O14 ECU connector.

    2. Disconnect the O26 handle connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O14-20 (TRG+) - O26-3 (TRG+) Always Below 1 Ω
      O26-3 (TRG+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  16. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)


    1. For Standard Body :


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

    2. For Long Body :


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

    3. Check that the entry function operates normally Click here.

      OK
      Operates normally

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

    NG

  17. CHECK REAR DOOR OUTSIDE HANDLE LH (OPERATION)


    1. For Standard Body :


      1. Replace the rear door outside handle LH with a new one or normally functioning one Click here.

    2. For Long Body :


      1. Replace the rear door outside handle LH with a new one or normally functioning one Click here.

    3. Check that the entry function operates normally Click here.

      Result
      Result Proceed to
      OK A
      NG (for Standard Body) B
      NG (for Long Body) C

    A

    END (REAR DOOR OUTSIDE HANDLE LH IS DEFECTIVE)

    B

    REPLACE REAR DOOR ECU LH Click here

    C

    REPLACE REAR DOOR ECU LH Click here