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Home >> Lexus >> 2016 >> LS 600h >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start >> Symptom Tests >> Driver Side Door Entry Lock and Unlock Functions do not Operate [09/2015 - ] >> Procedure

Driver Side Door Entry Lock and Unlock Functions do not Operate [09/2015 - ]: Procedure

  1. CHECK POWER DOOR LOCK OPERATION 
    1. When the master switch assembly's door control switch is operated, check that the locked doors unlock (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Locked doors unlock.

    Result:  NG

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM 

    (Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] )

    Result:  OK

    OK 

    See step  2

  2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) 
    1. Using the Techstream, read the Data List (Refer to DATA LIST / ACTIVE TEST [09/2015 - ] ).
      DRIVER DOOR

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Lock Position SW Driver side door lock position switch signal / ON or OFF ON: Driver side door lock is unlocked
      OFF: Driver side door lock is locked      		 -

      OK

      On the Techstream screen, item changes between ON and OFF according to above chart.

    Result:  NG

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK/UNLOCK Functions do not Operate) 

    (Refer to PROBLEM SYMPTOMS TABLE [09/2015 - ] )

    Result:  OK

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM 
    1. Using the Techstream, read the Data List (Refer to DATA LIST / ACTIVE TEST [09/2015 - ] ).
      DRIVER DOOR

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Outside Handle Trigger SW Driver side door outside handle lock switch / ON or OFF ON: Driver side door outside handle lock switch is pushed
      OFF: Driver side door outside handle lock switch is not pushed      		 -
      Entry Sensor Driver side door touch sensor / ON or OFF ON: Driver side door sensor is touched
      OFF: Driver side door sensor is not touched      		 -

      OK

      On the Techstream screen, item changes between ON and OFF according to above chart.

    Result:  NG

    NG 

    See step  12

    Result:  OK

    OK 

    See step  4

  4. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the front door outside handle LH, and perform a driver door entry lock and unlock operation check.
      GTY627884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

      HINT: 

      • When the electrical key transmitter is brought near the driver door outside handle, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • If the inspection result is that the operation check 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.

    Result:  OK

    OK 

    AFFECTED BY WAVE INTERFERENCE 

    Result:  NG

    NG 

    See step  5

  5. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection door electrical key oscillator
      GTY627878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch ON (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart 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.

        HINT: 

        If the buzzer sounds, it can be determined that the driver seat outside transmitter is operating normally.

        OK

        Wireless door lock buzzer sounds

    Result:  OK

    OK 

    END (CERTIFICATION ECU IS DEFECTIVE) 

    Result:  NG

    NG 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY665075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L15 ECU connector.
    2. Disconnect the N20 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L15-34 (CG1B) - N20-5 (CLGB) Always Below 1 Ω
      L15-33 (CLG1) - N20-10 (CLG) Always Below 1 Ω
      L15-34 (CG1B) or N20-5 (CLGB) - Body ground Always 10 kΩ or higher
      L15-33 (CLG1) or N20-10 (CLG) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY673962Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector.
    2. Disconnect the N20 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      N10-15 (SEL) - N20-4 (SEL) Always Below 1 Ω
      N10-15 (SEL) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE LH) 
    GTY616736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N20 oscillator connector.
    2. Disconnect the N21 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      N20-3 (ANT1) - N21-5 (ANT1) Always Below 1 Ω
      N20-8 (ANT2) - N21-2 (ANT2) Always Below 1 Ω
      N20-3 (ANT1) - Body ground Always 10 kΩ or higher
      N20-8 (ANT2) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  9

  9. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one (Refer to REMOVAL [09/2015 - ] ).
    2. Check that the entry function operates normally (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Operates normally

    Result:  OK

    OK 

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

    Result:  NG

    NG 

    See step  10

  10. CHECK FRONT DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the front door outside handle LH with a new one or normally functioning one (Refer to REMOVAL [09/2015 - ] ).
    2. Check that the entry function operates normally (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Operates normally

    Result:  OK

    OK 

    END (FRONT DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

    Result:  NG

    NG 

    See step  11

  11. CHECK FRONT DOOR ECU LH (OPERATION) 
    1. Replace the front door ECU LH with a new one or normally functioning one (Refer to REMOVAL [09/2015 - ] ).
    2. Check that the entry function operates normally (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Operates normally

    Result:  OK

    OK 

    END (FRONT DOOR ECU LH IS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE CERTIFICATION ECU 

    (Refer to REMOVAL [09/2015 - ] )

  12. CHECK FRONT DOOR ECU LH 
    GTY654323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Condition
      N10-12 (OSCB) - N10-19 (OSCE) Always 11 to 14 V

    Result:  NG

    NG 

    REPLACE FRONT DOOR ECU LH 

    (Refer to REMOVAL [09/2015 - ] )

    Result:  OK

    OK 

    See step  13

  13. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY641216Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector.
    2. Disconnect the N20 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      N10-12 (OSCB) - N20-1 (B) Always Below 1 Ω
      N10-14 (SENS) - N20-6 (SENS) Always Below 1 Ω
      N10-19 (OSCE) - N20-7 (GND) Always Below 1 Ω
      N20-1 (B) - Body ground Always 10 kΩ or higher
      N20-6 (SENS) - Body ground Always 10 kΩ or higher
      N20-7 (GND) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  14

  14. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE LH) 
    GTY646961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N20 oscillator connector.
    2. Disconnect the N21 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      N20-2 (SGT2) - N21-6 (SGT1) Always Below 1 Ω
      N20-9 (TRG-) - N21-1 (TRG-) Always Below 1 Ω
      N20-2 (SGT2) - Body ground Always 10 kΩ or higher
      N20-9 (TRG-) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  15

  15. CHECK HARNESS AND CONNECTOR (FRONT DOOR ECU LH - FRONT DOOR OUTSIDE HANDLE LH) 
    GTY617629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 ECU connector.
    2. Disconnect the N21 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      N10-20 (TRG+) - N21-3 (TRG+) Always Below 1 Ω
      N10-20 (TRG+) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  16

  16. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one (Refer to REMOVAL [09/2015 - ] ).
    2. Check that the entry function operates normally (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Operates normally

    Result:  OK

    OK 

    END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

    Result:  NG

    NG 

    See step  17

  17. CHECK FRONT DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the front door outside handle LH with a new one or normally functioning one (Refer to REMOVAL [09/2015 - ] ).
    2. Check that the entry function operates normally (Refer to OPERATION CHECK [09/2015 - ] ).

      OK

      Operates normally

    Result:  OK

    OK 

    END (FRONT DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

    Result:  NG

    NG 

    REPLACE FRONT DOOR ECU LH 

    (Refer to REMOVAL [09/2015 - ] )

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