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Home >> Lexus >> 2008 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate >> Inspection Procedure
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Inspection Procedure

  1. READ VALUE OF TECHSTREAM 
    1. Using the Techstream, read the Data List.

      Smart Access (Certification ECU) 

      SMART ACCESS (CERTIFICATION ECU) - MEASUREMENT ITEM/DISPLAY CHART

      Tester Display Measurement Item/Display Normal Condition
      Auto Entry Cancel SW Entry function cancel / ON or OFF Mode status is displayed

      Result 

      RESULT REFERENCE

      Result Proceed to
      Entry function is OFF A
      Entry function is ON B

    B: PERFORM CANCELLATION OF ENTRY KEY CANCEL FUNCTION  (See CUSTOMIZE PARAMETERS  )

    A: Go to next step 

  2. CHECK WAVE ENVIRONMENT 
    1. Move the electrical key transmitter as described below and perform the operation inspection.

      HINT:

      • When the electrical key transmitter is brought near the door outside handle or electrical key antenna, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • The transmitting wave of the wireless function and entry function are the same, but the wave logic is different. As a result, it is possible that only the wireless function or only the entry function is affected by wave interference.
    2. Bring the electrical key transmitter near the driver door outside handle, and perform a driver door entry lock and unlock operation check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.
      Fig 1: Identifying Distance Between Key And Door Handle 0.3 m (0.9 ft.)
      G04951624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Bring the electrical key transmitter near the front passenger door outside handle, and perform a front passenger door entry lock and unlock operation check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.
      Fig 2: Identifying Distance Between Key And Door Handle 0.3 m (0.9 ft.)
      G04951659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Bring the electrical key transmitter near the rear left door outside handle, and perform a rear left door entry lock and unlock operation check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.
      Fig 3: Identifying Distance Between Key And Door Handle 0.3 m (0.9 ft.)
      G04951626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Bring the electrical key transmitter near the rear right door outside handle, and perform a rear right door entry lock and unlock operation check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the door handle, communication is not possible.
    6. Bring the electrical key transmitter near the indoor electrical key oscillator (in center console), and perform an engine start check.
      Fig 4: Identifying Distance Between Key And Door Handle 0.3 m (0.9 ft.)
      G04951627Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the center console, communication is not possible.
    7. Bring the electrical key transmitter near the indoor electrical key oscillator (in rear seat cushion), and perform an engine start check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the rear seat cushion, communication is not possible.
    8. Bring the electrical key transmitter near the electrical key antenna (in rear bumper), and perform an entry luggage compartment open function check.
      NOTE: If the key is brought within 0.2 m (0.6 ft.) of the rear bumper, communication is not possible.

      HINT:

      If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      Fig 5: Identifying Distance Between Key And Rear Bumper 0.3 m (0.9 ft.)
      G04951628Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT REFERENCE

      Result Proceed to
      All operation checks fail A
      Some operation checks are normal B

    B: AFFECTED BY WAVE INTERFERENCE 

    A: Go to next step 

  3. KEY DIAGNOSTIC MODE 
    1. Diagnostic mode inspection (driver door outside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine 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.
        Fig 6: Identifying Distance Between Key And Door Handle 0.7 To 1.0 m (2.3 To 3.3 ft.)
        G04951629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Diagnostic mode inspection (front passenger door outside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Passenger Side.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
        Fig 7: Identifying Distance Between Key And Door Handle 0.7 To 1.0 m (2.3 To 3.3 ft.)
        G04951630Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Diagnostic mode inspection (rear door LH outside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Driver Side Rear.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
        Fig 8: Identifying Distance Between Key And Door Handle 0.7 To 1.0 m (2.3 To 3.3 ft.)
        G04951631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Diagnostic mode inspection (rear door RH outside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine 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.
        Fig 9: Identifying Distance Between Key And Door Handle 0.7 To 1.0 m (2.3 To 3.3 ft.)
        G04951632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Diagnostic mode inspection (front inside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Front Room.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
        Fig 10: Inspecting Front Inside Oscillator
        G05852794Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Diagnostic mode inspection (rear inside oscillator)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Rear Room.
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.
        Fig 11: Inspecting Rear Inside Oscillator
        G04951593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Diagnostic mode inspection (luggage compartment antenna)
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the Techstream on.
      4. Enter the following menus: Body Electrical / Smart Access / Smart Communication Check /Overhead + Luggage.
        Fig 12: Identifying Distance Between Key And Rear Bumper 0.7 To 1.0 m (2.3 To 3.3 ft.)
        G04951635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

        Result 

        RESULT REFERENCE

        Result Proceed to
        All diagnostic mode inspections fail A
        Some diagnostic mode inspections fail (door) B
        Some diagnostic mode inspections fail (interior) C
        Some diagnostic mode inspections fail (luggage compartment) D
        All diagnostic mode inspections are normal E

    B: GO TO DTC OF OTHER COMPONENTS (PROCEED TO PROBLEM SYMPTOM FLOWCHART FOR EACH DOOR)  (See PROBLEM SYMPTOMS TABLE  )

    C: GO TO OTHER FLOWCHART  (See ROOM OSCILLATOR DOES NOT RECOGNIZE KEY  )

    D: GO TO OTHER FLOWCHART  (See LUGGAGE COMPARTMENT DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE WHEN KEY IS OUTSIDE LUGGAGE COMPARTMENT  )

    E: REPLACE CERTIFICATION ECU 

    A: Go to next step 

  4. REPLACE ELECTRICAL KEY TRANSMITTER 
    1. Replace the electrical key transmitter with a new one and perform the registration procedure (see REGISTRATION ).
  5. CHECK OPERATION 
    1. Check the operation of the entry lock function.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END 

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