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Home >> Lexus >> 2013 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Starter >> Smart Access System (Keyless Start) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start >> Symptom Tests >> Rear Door LH Entry Lock And Unlock Functions Do Not Operate >> Procedure

Rear Door LH Entry Lock And Unlock Functions Do Not Operate: Procedure

  1. CHECK POWER DOOR LOCK OPERATION 
    1. When the master switch's door control switch is operated, check that the locked doors unlock. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Locked doors unlock.

    NG → See step   18 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) 
    1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST [09/2012 - ] .
      REAR LEFT DOOR

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

      OK

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

    NG → See step   21 

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM 
    1. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST [09/2012 - ] .
      REAR LEFT DOOR

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

      OK

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

    NG → See step   12 

    OK: Go to next step 

  4. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the rear door outside handle LH, and perform a rear left door entry lock and unlock operation check.
      GTY404730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

      HINT: 

      • When the electrical key transmitter is brought near the rear left passenger 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.

    NG → See step   5 

    OK → AFFECTED BY WAVE INTERFERENCE 

  5. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection door electrical key oscillator
      GTY405313Courtesy 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 + Passenger Side Rear.
      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 rear left seat outside transmitter is operating normally.

        OK

        Wireless door lock buzzer sounds

    NG → See step   6 

    OK → END (CERTIFICATION ECU IS DEFECTIVE) 

  6. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY419903Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L16 ECU connector.
    2. Disconnect the O25 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      L16-9 (CG3B) - O25-5 (CLGB) Always Below 1 Ω
      L16-8 (CLG3) - O25-10 (CLG) Always Below 1 Ω
      O25-5 (CLGB) - Body ground Always 10 kΩ or higher
      O25-10 (CLG) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY417773Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the O25 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O14-16 (SEL) - O25-4 (SEL) Always Below 1 Ω
      O25-4 (SEL) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  8. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH) 
    GTY418482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O25 oscillator connector.
    2. Disconnect the O26 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O25-3 (ANT7) - O26-5 (ANT7) Always Below 1 Ω
      O25-8 (ANT8) - O26-2 (ANT8) Always Below 1 Ω
      O25-3 (ANT7) - Body ground Always 10 kΩ or higher
      O25-8 (ANT8) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  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 [09/2012 - ] .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Operates normally

    NG → See step   10 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  10. CHECK REAR DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the rear door outside handle LH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Operates normally

    NG → See step   11 

    OK → END (REAR DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

  11. CHECK REAR DOOR ECU LH (OPERATION) 
    1. Replace the rear door ECU LH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Operates normally

    NG → See step   20 

    OK → END (REAR DOOR ECU LH IS DEFECTIVE) 

  12. CHECK REAR DOOR ECU LH 
    GTY144270Courtesy 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
      O14-12 (OSCB) - O14-15 (OSCE) Always 11 to 14 V

    NG → See step   19 

    OK: Go to next step 

  13. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - DOOR ELECTRICAL KEY OSCILLATOR) 
    GTY412804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the O25 oscillator connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O14-12 (OSCB) - O25-1 (B) Always Below 1 Ω
      O14-14 (SENS) - O25-6 (SENS) Always Below 1 Ω
      O14-15 (OSCE) - O25-7 (GND) Always Below 1 Ω
      O25-1 (B) - Body ground Always 10 kΩ or higher
      O25-6 (SENS) - Body ground Always 10 kΩ or higher
      O25-7 (GND) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  14. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH) 
    GTY407417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O25 oscillator connector.
    2. Disconnect the O26 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O25-2 (SGT8) - O26-6 (SGT7) Always Below 1 Ω
      O25-9 (TRG-) - O26-1 (TRG-) Always Below 1 Ω
      O25-2 (SGT8) - Body ground Always 10 kΩ or higher
      O25-9 (TRG-) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  15. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH) 
    GTY397360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O14 ECU connector.
    2. Disconnect the O26 handle connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      O14-20 (TRG+) - O26-3 (TRG+) Always Below 1 Ω
      O26-3 (TRG+) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  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 [09/2012 - ] .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Operates normally

    NG → See step   17 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  17. CHECK REAR DOOR OUTSIDE HANDLE LH (OPERATION) 
    1. Replace the rear door outside handle LH with a new one or normally functioning one. Refer to REMOVAL [09/2012 - ] .
    2. Check that the entry function operates normally. Refer to OPERATION CHECK [09/2012 - ] .

      OK

      Operates normally

    NG → See step   19 

    OK → END (REAR DOOR OUTSIDE HANDLE LH IS DEFECTIVE) 

  18. GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [09/2012 - ] 
  19. REPLACE REAR DOOR ECU LH. Refer to  REMOVAL [09/2012 - ] 
  20. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [09/2012 - ] 
  21. GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Rear Door LH LOCK/UNLOCK Functions do not Operate). Refer to  PROBLEM SYMPTOMS TABLE [09/2012 - ]