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

DESCRIPTION

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

WIRING DIAGRAM

A0018VME26
A0018VME27

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.

      Rear Right Door (Rear door ECU RH)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Lock Position SW Rear RH side door lock position switch signal / ON or OFF

      ON: Rear RH side door is unlocked

      OFF: Rear RH side door is locked

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

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door RH 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.

      Rear Right Door (Rear door ECU RH)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Entry Sensor Rear RH side door touch sensor / ON or OFF

      ON: Rear RH side door sensor is touched

      OFF: Rear RH side door sensor is not touched

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

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

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

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

    B

    CHECK WAVE ENVIRONMENT Click here

    A

  4. CHECK REAR DOOR ECU RH

    A001FE6E01
    *1 Component with harness connected: (Rear Door ECU RH)
    *2 OSCE
    *3 OSCB

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

      Standard voltage
      Tester Connection Condition Specified Condition
      O3-12 (OSCB) - O3-15 (OSCE) Always 11 to 14 V

    NG

    REPLACE REAR DOOR ECU RH Click here

    OK

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

    A001BVHE02

    1. Disconnect the O23 oscillator connector.

    2. Disconnect the O3 ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O23-1 (B) - O3-12 (OSCB) Always Below 1 Ω
      O23-6 (SENS) - O3-14 (SENS) Always Below 1 Ω
      O23-7 (GND) - O3-15 (OSCE) Always Below 1 Ω
      O23-1 (B) - Body ground Always 10 kΩ or higher
      O23-6 (SENS) - Body ground Always 10 kΩ or higher
      O23-7 (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 - REAR DOOR OUTSIDE HANDLE RH)

    A001CPGE02
    *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)

    1. Disconnect the O24 handle connector.

    2. Disconnect the O23 oscillator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O23-2 (SGT6) - O24-6 (SGT5) Always Below 1 Ω
      O23-9 (TRG-) - O24-1 (TRG-) Always Below 1 Ω
      O23-2 (SGT6) - Body ground Always 10 kΩ or higher
      O23-9 (TRG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    A001FSPE02
    *1 Front view of wire harness connector: (to Rear Door ECU RH)
    *2 Front view of wire harness connector: (to Rear Door Outside Handle RH)

    1. Disconnect the O24 handle connector.

    2. Disconnect the O3 ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O24-3 (TRG+) - O3-20 (TRG+) Always Below 1 Ω
      O24-3 (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 REAR DOOR OUTSIDE HANDLE RH (OPERATION)


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

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (REAR DOOR OUTSIDE HANDLE RH IS DEFECTIVE)

    NG

    REPLACE REAR DOOR ECU RH Click here

  10. CHECK WAVE ENVIRONMENT


    1. A001BSFE01
      *1 Approximately 0.3 m (0.9 ft.)

      Bring the electrical key transmitter near the rear right door outside handle, and perform a rear right 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 rear right 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

  11. KEY DIAGNOSTIC MODE


    1. A001BSFE02
      *1 0.7 to 1.0 m (2.3 to 3.3 ft.)

      Diagnostic mode inspection (rear door RH outside oscillator)


      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 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 right 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)

    A001ALDE02
    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 O23 oscillator connector.

      2. Disconnect the L16 ECU connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        O23-5 (CLGB) - L16-11 (CG4B) Always Below 1 Ω
        O23-10 (CLG) - L16-10 (CLG4) Always Below 1 Ω
        O23-5 (CLGB) - Body ground Always 10 kΩ or higher
        O23-10 (CLG) - Body ground Always 10 kΩ or higher
      A001DGOE02
      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 O23 oscillator connector.

      2. Disconnect the L16 ECU connector.

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

        Standard resistance
        Tester Connection Condition Specified Condition
        O23-5 (CLGB) - L16-9 (CG3B) Always Below 1 Ω
        O23-10 (CLG) - L16-8 (CLG3) Always Below 1 Ω
        O23-5 (CLGB) - Body ground Always 10 kΩ or higher
        O23-10 (CLG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    A0019QUE02
    *1 Front view of wire harness connector: (to Rear Door ECU RH)
    *2 Front view of wire harness connector: (to Door Electrical Key Oscillator)

    1. Disconnect the O23 oscillator connector.

    2. Disconnect the O3 ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O23-4 (SEL) - O3-16 (SEL) Always Below 1 Ω
      O23-4 (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 - REAR DOOR OUTSIDE HANDLE RH)

    A001C0DE02
    *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)

    1. Disconnect the O24 handle connector.

    2. Disconnect the O23 oscillator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      O23-3 (ANT5) - O24-5 (ANT5) Always Below 1 Ω
      O23-8 (ANT6) - O24-2 (ANT6) Always Below 1 Ω
      O23-3 (ANT5) - Body ground Always 10 kΩ or higher
      O23-8 (ANT6) - 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 REAR DOOR OUTSIDE HANDLE RH (OPERATION)


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

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (REAR DOOR OUTSIDE HANDLE RH IS DEFECTIVE)

    NG

  17. CHECK REAR DOOR ECU RH (OPERATION)


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

    2. Check that the entry function operates normally.

      OK
      Operates normally

    OK

    END (REAR DOOR ECU RH IS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU