ENTRY AND START SYSTEM (for Entry Function) Driver Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION

When the driver door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock control system; 2) front door outside handle assembly (for driver side); 3) door electrical key oscillator (for driver side); or 4) certification ECU (smart key ECU assembly).

WIRING DIAGRAM

A003SSHE28

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 OUTSIDE HANDLE)


    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 / Entry & Start / Data List.

    5. 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 Touch Sensor Driver side door touch sensor / ON or OFF

      ON: Sensor touched

      OFF: Sensor not touched

      		 -
      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

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

    OK

  3. CHECK WAVE ENVIRONMENT


    1. A003UG7E01

      Bring the electrical key transmitter near the front door outside handle assembly (for driver side), and perform a driver door entry lock and unlock operation check.

      Note

      If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.

      Tech Tips


      • When the electrical key transmitter is brought near the front door outside handle assembly (for driver side), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.

      • If the operation 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.

      OK
      Entry functions operate normally.

    NG

    PERFORM KEY DIAGNOSTIC MODE INSPECTION Click here

    OK

    AFFECTED BY WAVE INTERFERENCE

  4. PERFORM KEY DIAGNOSTIC MODE INSPECTION


    1. A003UG7E02

      Diagnostic mode inspection (door electrical key oscillator (for driver side))


      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 / Entry & Start / Key Communication Check / Overhead + Driver Side.

      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 door electrical key oscillator (for driver side) is operating normally.

        OK
        Wireless door lock buzzer sounds.

    NG

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR) Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

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


    1. Disconnect the certification ECU (smart key ECU assembly) 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
      E117-5 (SEL1) - S2-4 (SEL) Always Below 1 Ω
      E117-33 (CLG1) - S2-10 (CLG) Always Below 1 Ω
      E117-34 (CG1B) - S2-5 (CLGB) Always Below 1 Ω
      E117-5 (SEL1) - Body ground Always 10 kΩ or higher
      E117-33 (CLG1) - Body ground Always 10 kΩ or higher
      E117-34 (CG1B) - Body ground Always 10 kΩ or higher
      for LHD
      Tester Connection Condition Specified Condition
      E117-5 (SEL1) - T2-4 (SEL) Always Below 1 Ω
      E117-33 (CLG1) - T2-10 (CLG) Always Below 1 Ω
      E117-34 (CG1B) - T2-5 (CLGB) Always Below 1 Ω
      E117-5 (SEL1) - Body ground Always 10 kΩ or higher
      E117-33 (CLG1) - Body ground Always 10 kΩ or higher
      E117-34 (CG1B) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      S1-2 (ANT2) - S2-8 (ANT2) Always Below 1 Ω
      S1-5 (ANT1) - S2-3 (ANT1) Always Below 1 Ω
      S1-2 (ANT2) - Body ground Always 10 kΩ or higher
      S1-5 (ANT1) - Body ground Always 10 kΩ or higher
      for LHD
      Tester Connection Condition Specified Condition
      T1-2 (ANT2) - T2-8 (ANT2) Always Below 1 Ω
      T1-5 (ANT1) - T2-3 (ANT1) Always Below 1 Ω
      T1-2 (ANT2) - Body ground Always 10 kΩ or higher
      T1-5 (ANT1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - BATTERY AND BODY GROUND)


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

      Standard Voltage
      for RHD
      Tester Connection Condition Specified Condition
      S2-1 (B) - Body ground Power switch off 11 to 14 V
      for LHD
      Tester Connection Condition Specified Condition
      T2-1 (B) - Body ground Power switch off 11 to 14 V

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

      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      S2-7 (GND) - Body ground Always Below 1 Ω
      for LHD
      Tester Connection Condition Specified Condition
      T2-7 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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


    NEXT

  9. 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 KEY OSCILLATOR WAS DEFECTIVE)