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

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DTC Code DTC Name
  Driver Side Door Entry Lock Function does not Operate
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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)).

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

The smart 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 smart entry and start system (for entry function) after confirming that the communication system is functioning properly.

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PROCEDURE


  1. Click here

    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.

  2. Click here

    READ VALUE USING INTELLIGENT TESTER (DOOR LOCK POSITION 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 / Main Body / Data List.

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

      Table 1. Main Body (Main Body ECU)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D-Door Lock Pos SW Driver door lock position switch signal/ON or OFF

      ON: Driver door unlocked

      OFF: Driver door locked

      		 -
      OK
      On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.
      Result
      Result Proceed to
      OK A
      NG

      B

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

  3. Click here

    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.

      Table 2. 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 pressed

      OFF: Entry lock switch not pressed

      		 -
      OK
      On the intelligent tester screen, the display changes between ON and OFF as shown in the chart above.

  4. Click here

    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
      Table 3. for RHD
      Tester Connection Condition Specified Condition
      z8-1 (TRG-) - z9-9 (TRG-) Always Below 1 Ω
      z8-1 (TRG-) - Body ground Always 10 kΩ or higher
      Table 4. for LHD
      Tester Connection Condition Specified Condition
      z10-1 (TRG-) - z11-9 (TRG-) Always Below 1 Ω
      z10-1 (TRG-) - Body ground Always 10 kΩ or higher

  5. Click here

    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
      Table 5. for RHD
      Tester Connection Condition Specified Condition
      G20-3 (TSW1) - z8-3 (TRG+) Always Below 1 Ω
      G20-3 (TSW1) - Body ground Always 10 kΩ or higher
      Table 6. for LHD
      Tester Connection Condition Specified Condition
      G20-3 (TSW1) - z10-3 (TRG+) Always Below 1 Ω
      G20-3 (TSW1) - Body ground Always 10 kΩ or higher

  6. Click here

    INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side)


    1. A01CGF3E01

      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
      Table 7. Text in Illustration
      *A for RHD
      *B for LHD
      *a

      Component without harness connected

      (Front Door Outside Handle Assembly (for Driver Side)

  7. Click here

    REPLACE DOOR ELECTRICAL KEY OSCILLATOR (for Driver Side)


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


  8. Click here

    CHECK DOOR ELECTRICAL KEY OSCILLATOR (for Driver Side)


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

      OK
      Entry functions operate normally.

  9. Click here

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

  10. Click here

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

  11. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. Click here

    END (DOOR ELECTRICAL OSCILLATOR WAS DEFECTIVE)

  14. Click here

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  15. Click here

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