ENTRY AND START SYSTEM (for Entry Function) Driver Side Door Entry Lock Function does not Operate

DESCRIPTION

If the driver door entry lock function does not operate but the entry unlock function operates, the communication line between the vehicle and electrical key transmitter is normal. Any of the following components may have a malfunction: 1) touch sensor circuit certification ECU (smart key ECU assembly); 2) front door outside handle assembly (driver side); or 3) door electrical key oscillator (driver side).

WIRING DIAGRAM

A01623RE18

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the door control switch on the master switch assembly 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 (DOOR UNLOCK DETECTION SWITCH)


    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: Body / Master Switch / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      Master Switch (Multiplex Network Master Switch Assembly)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Lock Pos SW Driver side door unlock detection switch signal/ON or OFF

      ON: Driver side door is unlocked

      OFF: Driver side door is locked

      		 -
      OK
      On the intelligent tester screen, ON or OFF will be displayed accordingly.
      Result
      Result Proceed to
      OK A
      NG

      B

      (Refer to "Driver Door LOCK/UNLOCK Functions do not Operate" in the problem symptoms table)

    B

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER (DOOR OUTSIDE HANDLE)


    1. Enter the following menus: Body / Entry & Start / Data List.

    2. Read the Data List according to the display on the intelligent tester.

      Entry & Start (Certification ECU (Smart Key ECU Assembly))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D-Door Trigger SW Driver side door lock switch / ON or OFF

      ON: Entry lock switch is pressed

      OFF: Entry lock switch is not pressed

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

    NG

    CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR) Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

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


    1. Disconnect the front door outside handle assembly (driver side) connector.

    2. A015Z5PE73

      Disconnect the door electrical key oscillator (driver side) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      o1-1 (TRG-) - o2-9 (TRG-) Always Below 1 Ω
      o1-1 (TRG-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      n1-1 (TRG-) - n2-9 (TRG-) Always Below 1 Ω
      n1-1 (TRG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A0162NEE07

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

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      P33-3 (TSW1) - o1-3 (TRG+) Always Below 1 Ω
      P33-3 (TSW1) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      P33-3 (TSW2) - n1-3 (TRG+) Always Below 1 Ω
      P33-3 (TSW2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side)


    1. A015ZJ9E01

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (TRG-) - 3 (TRG+) Lock switch not pushed 10 kΩ or higher
      1 (TRG-) - 3 (TRG+) Lock switch pushed Below 1 Ω

    NG

    REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side) Click here

    OK

  7. REPLACE DOOR ELECTRICAL KEY OSCILLATOR (for Driver Side)


    1. Replace the door electrical key oscillator (driver side) Click here.


    NEXT

  8. CHECK DOOR ELECTRICAL KEY OSCILLATOR (for Driver Side)


    1. Check that the entry functions operate normally Click here.

      OK
      Entry functions operate normally.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (DOOR ELECTRICAL OSCILLATOR IS DEFECTIVE)