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

DESCRIPTION

If the driver side door entry lock function does not operate but the entry unlock function operates, the communication between the vehicle and electrical key transmitter is normal. The malfunctioning part may be an entry lock switch circuit (door electrical key oscillator (for driver side) → front door outside handle assembly (for driver side) (entry lock switch) → certification ECU (smart key ECU assembly)).

WIRING DIAGRAM

A003TDKE66

INSPECTION PROCEDURE

Note

The entry and start system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for entry function) after confirming that the communication system is functioning properly.

PROCEDURE


  1. CHECK POWER DOOR LOCK OPERATION


    1. When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation Click here.

      OK
      Door locks operate normally.

    NG

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

    OK

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


    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: Body / Main Body / Data List.

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

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Door Lock Pos*1 Front door lock position switch RH signal/LOCK or UNLOCK

      LOCK: Front door RH locked

      UNLOCK: Front door RH unlocked

      		 -
      FL Door Lock Pos*2 Front door lock position switch LH signal/LOCK or UNLOCK

      LOCK: Front door LH locked

      UNLOCK: Front door LH unlocked

      		 -

      • *1 for RHD

      • *2 for LHD

      OK
      On the intelligent tester screen, the display changes between LOCK and UNLOCK as shown in the chart above.

    NG

    GO TO LIGHTING SYSTEM Click here

    OK

  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 Switch Driver side door lock switch / ON or OFF

      ON: Switch pressed

      OFF: Switch not pressed

      		 -
      OK
      On the intelligent tester screen, the display changes between ON and OFF as shown in 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 (for driver side) connector.

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

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

      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      S1-1 (TRG-) - S2-9 (TRG-) Always Below 1 Ω
      S1-1 (TRG-) - Body ground Always 10 kΩ or higher
      for LHD
      Tester Connection Condition Specified Condition
      T1-1 (TRG-) - T2-9 (TRG-) Always Below 1 Ω
      T1-1 (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. 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 RHD
      Tester Connection Condition Specified Condition
      E117-3 (TSW1) - S1-3 (TRG+) Always Below 1 Ω
      E117-3 (TSW1) - Body ground Always 10 kΩ or higher
      for LHD
      Tester Connection Condition Specified Condition
      E117-3 (TSW1) - T1-3 (TRG+) Always Below 1 Ω
      E117-3 (TSW1) - 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. A003S0KE01
      Text in Illustration
      *A for RHD
      *B for LHD
      *a

      Component without harness connected

      (Front Door Outside Handle Assembly (for Driver Side))

      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 (for 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 WAS DEFECTIVE)