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Driver Side Door Entry Unlock Function does not Operate [10/2014 - ]: 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.
      RESULT

      Result Proceed to
      Door locks operate normally OK
      Door locks do not operate normally NG

    NG → See step   10 

    OK: Go to next step 

  2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) 
    1. Using the Techstream, read the Data List.
      DRIVER DOOR (FRONT DOOR ECU LH)

      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 is unlocked
      OFF: Driver side door is locked
      -

      OK

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

    NG → See step   12 

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM 
    1. Using the Techstream, read the Data List.
      DRIVER DOOR (FRONT DOOR ECU LH)

      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      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 screen, item changes between ON and OFF according to above chart.

    NG → See step   5 

    OK: Go to next step 

  4. CHECK FRONT DOOR ECU LH (OPERATION) 
    1. Replace the front door ECU LH with a new one or normally functioning one. Refer to COMPONENTS [10/2014 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   11 

    OK → END (FRONT DOOR ECU LH IS DEFECTIVE) 

  5. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR LH) 
    GTY412709Courtesy 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

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE LH) 
    GTY418473Courtesy 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
      N20-2 (SGT2) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the door electrical key oscillator with a new one or normally functioning one. Refer to COMPONENTS [10/2014 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   8 

    OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

  8. 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 COMPONENTS [10/2014 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   9 

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

  9. CHECK FRONT DOOR ECU LH (OPERATION) 
    1. Replace the front door ECU LH with a new one or normally functioning one. Refer to COMPONENTS [10/2014 - ] .
    2. Check that the entry function operates normally.

      OK

      Operates normally

    NG → See step   11 

    OK → END (FRONT DOOR ECU LH IS DEFECTIVE) 

  10. GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 
  11. REPLACE CERTIFICATION ECU. Refer to  REMOVAL [10/2014 - ] 
  12. GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK/UNLOCK Functions do not Operate). Refer to  PROBLEM SYMPTOMS TABLE [10/2014 - ]