ENTRY AND START SYSTEM Rear Door LH Entry Lock Function does not Operate

DESCRIPTION

If the rear door LH entry lock function does not operate but the entry unlock operation operates, the communication line between the vehicle and electrical key transmitter is normal. Either of the following may have occurred: 1) the entry lock switch is malfunctioning; or 2) the rear door ECU LH receives the entry lock switch ON signal, but is unable to send the signal to the certification ECU through CAN communication.

WIRING DIAGRAM

Refer to Rear Door LH Entry Lock and Unlock Functions do not Operate Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the multiplex network 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 Left Door (Rear door ECU LH)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Lock Position SW Rear LH side door lock position switch signal / ON or OFF

      ON: Rear LH side door is unlocked

      OFF: Rear LH side door 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 (OUTSIDE HANDLE)


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

      Rear Left Door (Rear door ECU LH)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Outside Handle Trigger SW Rear LH side door outside handle lock switch / ON or OFF

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

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

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

    NG

    INSPECT REAR DOOR OUTSIDE HANDLE LH Click here

    OK

  4. CHECK REAR DOOR ECU LH (OPERATION)


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

    2. Check that the entry function operates normally.

      OK
      Operates normally

    NG

    REPLACE CERTIFICATION ECU

    OK

    END (REAR DOOR ECU LH IS DEFECTIVE)

  5. INSPECT REAR DOOR OUTSIDE HANDLE LH


    1. A01GKGLE17

      Remove the rear door outside handle LH.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      O26-1 (TRG-) - O26-3 (TRG+) ON Below 1 Ω
      O26-1 (TRG-) - O26-3 (TRG+) OFF 10 kΩ or higher

    NG

    REPLACE REAR DOOR OUTSIDE HANDLE LH Click here

    OK

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

    A01GL2DE66

    1. Disconnect the O26 handle connector.

    2. Disconnect the O14 ECU connector.

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

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    A01GLUBE23

    1. Disconnect the O26 handle 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
      O26-1 (TRG-) - O25-9 (TRG-) Always Below 1 Ω
      O26-1 (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

    NG

    CHECK REAR DOOR ECU LH (OPERATION) Click here

    OK

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

  9. CHECK REAR DOOR ECU LH (OPERATION)


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

    2. Check that the entry function operates normally.

      OK
      Operates normally

    NG

    REPLACE CERTIFICATION ECU

    OK

    END (REAR DOOR ECU LH IS DEFECTIVE)