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Engine does not Start [03/2017 - ]: Procedure

  1. CHECK BATTERY 
    1. Measure the battery voltage.

      Standard voltage

      11 to 14 V

      HINT: 

      • It may be possible to tell whether the vehicle battery is discharged by operating the horn.
      • If the battery voltage is less than 11 V, charge or replace it.

    Result: 

    NEXT 

    See step  2

  2. CHECK DTC (ALL) 
    1. Using the Techstream, confirm the output of DTCs for all systems.

      OK

      No DTCs are output

    Result: 

    NG 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2017 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK WAVE ENVIRONMENT 
    1. If the problem occurs in certain locations or times of day, the possibility of wave interference is high.

      HINT: 

      Whether or not the problem is due to wave interference can be checked by holding the electrical key transmitter assembly near the door control receiver (RF band).

    Result: 

    NEXT 

    See step  4

  4. CHECK ENGINE SWITCH CONDITION 
    1. Get into the vehicle while carrying an electrical key transmitter assembly.
    2. Move the shift lever to P*.
      • *: for Automatic Transmission
    3. With the brake pedal*1 or clutch pedal*2 released, check that pressing the engine switch causes the power source mode to change.
      • *1: for Automatic Transmission
      • *2: for Manual Transmission
      RESULT

      Result Proceed to
      Power source mode changes as follows (normal): off → on (ACC) → on (IG) → off A
      Power source mode does not change to on (IG) or on (ACC) B
      Power source mode does not change to on (IG) but does change to on (ACC) C
      Power source mode does not change to on (ACC) but does change to on (IG) D

    Result: 

    B 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG AND ACC). Refer to  Power Source Mode does not Change to ON (IG and ACC) [03/2017 - 12/2017]  Refer to  Power Source Mode does not Change to ON (IG and ACC) [12/2017 - ]  

    Result: 

    C 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (IG). Refer to  Power Source Mode does not Change to ON (IG) [03/2017 - ]  

    Result: 

    D 

    GO TO POWER SOURCE MODE DOES NOT CHANGE TO ON (ACC). Refer to  Power Source Mode does not Change to ON (ACC) [03/2017 - ]  

    Result: 

    A 

    See step  5

  5. CHECK CRANKING FUNCTION 
    1. Get into the vehicle while carrying the electrical key transmitter assembly.
    2. Move the shift lever to P*.
      • *: for Automatic Transmission
    3. Depress the brake pedal*1 or clutch pedal*2.
      • *1: for Automatic Transmission
      • *2: for Manual Transmission
    4. Confirm that the entry key indicator in the combination meter assembly illuminates in green, and then press the engine switch and check that the engine cranks.

      OK

      Engine cranks

      RESULT

      Result Proceed to
      NG A
      OK B

    Result: 

    B 

    GO TO SFI SYSTEM (PROBLEM SYMPTOMS TABLE). Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - ] 

    Result: 

    A 

    See step  6

  6. READ VALUE USING TECHSTREAM (IMMOBILISER) 
    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 Key / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Immobiliser State of immobiliser system determined by certification ECU (smart key ECU assembly) / Set or Unset Set: Engine immobiliser set (engine start prohibited) (engine switch off)
      Unset: Engine immobiliser unset (engine start permitted) (engine switch on (ACC) or on (IG))
      • When the immobiliser cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) is part of the problem.
      • The engine cannot be started when this item displays "Set"

      OK

      The Data List item changes to "Unset" when the engine switch is turned on (ACC) or on (IG).

      RESULT

      Result Proceed to
      OK A
      NG (w/ ID Code Box) B
      NG (w/o ID Code Box) C

    Result: 

    B 

    See step  10

    Result: 

    C 

    See step  11

    Result: 

    A 

    See step  7

  7. CHECK COMBINATION METER ASSEMBLY (ENTRY KEY INDICATOR LIGHT) 
    1. Get into the vehicle while carrying the electrical key transmitter assembly, move the shift lever to P*1, depressing the brake pedal*1 or clutch pedal*2 and check that the entry key indicator light in the combination meter assembly changes.
      • *1: for Automatic Transmission
      • *2: for Manual Transmission

      OK

      The entry key indicator light in green.

      HINT: 

      If the entry key indicator light in the combination meter assembly illuminates green when the procedure above is performed, the P, N and brake signals*1 or clutch signal*2 can be considered to be normal.

      • *1: for Automatic Transmission
      • *2: for Manual Transmission
      RESULT

      Result Proceed to
      OK A
      NG (for Automatic Transmission) B
      NG (for Manual Transaxle) C

    Result: 

    B 

    See step  14

    Result: 

    C 

    See step  20

    Result: 

    A 

    See step  8

  8. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Starter Request Signal Condition of engine start command signal / OFF or ON OFF: Engine switch released after approximately 1 second elapses
      ON: Engine switch pressed and held while carrying electrical key transmitter assembly with shift lever in P*1 and brake pedal*1 or clutch pedal*2 depressed
      • When the engine cannot be started due to a start request signal malfunction, OFF is displayed.
      • When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time.
      • *1: for Automatic Transmission
      • *2: for Manual Transmission

      OK

      The display changes in response to the operation of the engine switch.

      NOTE:

      Make sure that the entry key indicator in the combination meter assembly illuminates in green before pressing the engine switch.

    Result: 

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - BODY GROUND) 
    1. Disconnect the D48 certification ECU (smart key ECU assembly) connector.
    2. Disconnect the A33 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-7 (STSW) - A33-17 (STSW) Always Below 1 Ω
      D48-7 (STSW) or A33-17 (STSW) - Body ground Always 10 kΩ or higher

    Result: 

    OK 

    GO TO SFI SYSTEM (PROBLEM SYMPTOMS TABLE). Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  10. READ VALUE USING TECHSTREAM (S CODE CHECK) 
    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 Key / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (S code certification result normal) appears on the screen.

    Result: 

    NG 

    See step  23

    Result: 

    OK 

    See step  11

  11. CHECK STEERING LOCK 
    1. Check that the steering unlocks when the engine switch is turned on (ACC).

      OK

      The steering unlocks.

    Result: 

    NG 

    See step  25

    Result: 

    OK 

    See step  12

  12. READ VALUE USING TECHSTREAM (IMMOBILISER) 
    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 Key / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Immobiliser State of immobiliser system determined by certification ECU (smart key ECU assembly) / Set or Unset Unset: Engine immobiliser unset (engine switch on [ACC] or on [IG])
      Set: Engine immobiliser set (engine switch off)
      • When the immobiliser cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) is part of the problem.
      • The engine cannot be started when this item displays "Set"

      OK

      The Data List item changes to "Unset" when the engine switch is turned on (ACC) or on (IG).

      RESULT

      Result Proceed to
      OK A
      NG (w/ ID Code Box) B
      NG (w/o ID Code Box) C

    Result: 

    B 

    See step  29

    Result: 

    C 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    A 

    See step  13

  13. READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Starter Request Signal Condition of engine start command signal / OFF or ON OFF: Engine switch released after approximately 1 second elapses
      ON: Engine switch pressed and held while carrying electrical key transmitter assembly with shift lever in P*1 and brake pedal*1 or clutch pedal*2 depressed
      • When the engine cannot be started due to a start request signal malfunction, OFF is displayed.
      • When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain amount of time.
      • *1: for Automatic Transmission
      • *2: for Manual Transmission

      OK

      The display changes in response to the operation of the engine switch.

      NOTE:

      Make sure that the entry key indicator in the combination meter assembly illuminates in green before pressing the engine switch.

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

  14. READ VALUE USING TECHSTREAM (NEUTRAL SW/ CLUTCH SW, SHIFT SW STATUS P OR N) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Neutral SW / Clutch SW Shift position (P, N) / OFF or ON OFF: Shift lever not in P or N or released
      ON: Shift lever in P or N depressed
      • Use this item to help determine if the park/neutral position switch is malfunctioning.
      • The engine cannot be started when this item is "OFF".

      Enter the following menus: Powertrain / Engine / Data List.

      ENGINE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (P Range) Condition of park/neutral position switch / OFF or ON OFF: Shift lever not in P
      ON: Shift lever in P      		 When malfunctioning, the engine will not crank.
      Shift SW Status (N Range) Condition of park/neutral position switch / OFF or ON OFF: Shift lever not in N
      ON: Shift lever in N      		 When malfunctioning, the engine will not crank.

      OK

      The items in the Data List change according to the shift position.

    Result: 

    NG 

    See step  16

    Result: 

    OK 

    See step  15

  15. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Stop Light Switch1 State of brake pedal / OFF or ON OFF: Brake pedal released
      ON: Brake pedal depressed
      • Use this item to determine whether the stop light switch is malfunctioning.
      • The engine cannot be started when this item is "OFF".
      • When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time.

      OK

      The item in the Data List changes when the brake pedal is depressed and released.

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    NG 

    See step  18

  16. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Remove the park/neutral position switch assembly (Refer to REMOVAL [06/2016 - ] ).
    2. Inspect the park/neutral position switch assembly (Refer to INSPECTION [06/2016 - ] ).

    Result: 

    NG 

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  REMOVAL [06/2016 - ] 

    Result: 

    OK 

    See step  17

  17. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) 
    1. Disconnect the D48 certification ECU (smart key ECU assembly) connector.
    2. Disconnect the L2 park/neutral position switch assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-5 (N-SW) - L2-4 Always Below 1 Ω
      L2-5 - Body ground Always Below 1 Ω
      D48-5 (N-SW) - Body ground Always 10 kΩ or higher

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  18. INSPECT STOP LIGHT SWITCH ASSEMBLY 
    1. Remove the stop light switch assembly (Refer to REMOVAL [06/2016 - ] ).
    2. Inspect the stop light switch assembly (Refer to INSPECTION [06/2016 - ] ).

    Result: 

    NG 

    REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to  REMOVAL [06/2016 - ] 

    Result: 

    OK 

    See step  19

  19. CHECK HARNESS AND CONNECTOR (NOISE FILTER - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

    See step  4

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  20. READ VALUE USING TECHSTREAM (NEUTRAL SW/ CLUTCH SW) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Neutral SW / Clutch SW State of clutch pedal / OFF or ON OFF: Clutch pedal released
      ON: Clutch pedal depressed
      • Use this item to help determine if the clutch position switch is malfunctioning.
      • The engine cannot be started when this item is "OFF".

      OK

      ON (clutch pedal depressed) and OFF (clutch pedal released) appear on the screen according to the condition of the clutch pedal.

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    NG 

    See step  21

  21. INSPECT CLUTCH START SWITCH ASSEMBLY 
    1. Remove the clutch start switch assembly.

      Refer to REMOVAL [06/2016 - ]

    2. Inspect the clutch start switch assembly.

      Refer to INSPECTION [06/2016 - ]

      RESULT

      Result Proceed to
      OK A
      NG B

    Result: 

    NG 

    REPLACE CLUTCH START SWITCH ASSEMBLY. Refer to  REMOVAL [06/2016 - ] 

    Result: 

    OK 

    See step  22

  22. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - CLUTCH START SWITCH ASSEMBLY) 
    1. Disconnect the D48 certification ECU (smart key ECU assembly) connector.
    2. Disconnect the A20 clutch start switch assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D48-10 (CLUT) - A20-2 Always Below 1 Ω
      D48-10 (CLUT) - Body ground Always 10 kΩ or higher
    4. Reconnect the A20 clutch start switch assembly connector.
    5. Measure the voltage according to the value(s) in the table below.
      GTY715744Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      D48-10 (CLUT) - Body ground Clutch pedal released → Clutch pedal depressed 1 V or less → 9 V or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Certification ECU (Smart Key ECU Assembly))

    Result: 

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  23. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    1. Replace the certification ECU (smart key ECU assembly) with a new one (Refer to REMOVAL [03/2017 - ] ).
      NOTE:

      When the certification ECU (smart key ECU assembly) is replaced, it is also necessary to replace all registered electrical key transmitter sub-assemblies.

    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Use the Data List to check if S code certification is functioning properly again.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (S code certification result normal) appears on the screen.

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  24

  24. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) 
    1. Replace the ID code box (immobiliser code ECU) with a new one (Refer to REMOVAL [03/2017 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Use the Data List to check if S code certification is functioning properly again.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (S code certification result normal) appears on the screen.

    Result: 

    NEXT 

    END 

  25. READ VALUE USING TECHSTREAM (STEERING UNLOCK SWITCH) 
    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 / Power Source Control / Data List.
    5. According to the display on the Techstream, read the Data List.
      POWER SOURCE CONTROL

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Steering Unlock Switch State of steering unlock sensor signal output from steering lock actuator assembly / OFF or ON OFF: Steering locked
      ON: Steering unlocked
      • When the shift lever is in P and the engine switch is off, if any door is opened or closed, the steering is locked.
      • When the electrical key transmitter assembly is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks.
      • The engine cannot be started when the steering unlock signal is off.

      OK

      The item in the Data List indicates "ON" (the steering is unlocked).

    Result: 

    OK 

    GO TO STEERING LOCK SYSTEM (UNABLE TO UNLOCK STEERING WHEEL). Refer to  Unable to Unlock Steering Wheel (Engine cannot Start) [03/2017 - ] 

    Result: 

    NG 

    See step  26

  26. READ VALUE USING TECHSTREAM (L CODE CHECK) 
    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 Key / Data List.
    5. According to the display on the Techstream, read the Data List.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      L Code Check Verification result between ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator assembly) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • L code has not been registered for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      The Data List item changes to "OK" when the electrical key transmitter assembly is inside the vehicle.

      HINT: 

      Reasons for verification failure:

      • The steering lock ECU, ID code box (immobiliser code ECU)* is malfunctioning.
      • There is a problem with the communication between ECUs.
      • An ECU is replaced, but is not registered.
      • An ECU is replaced with an ECU which has a code already stored in it.
      • *: w/ ID Code Box

    Result: 

    NG 

    See step  28

    Result: 

    OK 

    See step  27

  27. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
    1. Replace the steering lock ECU (steering lock actuator assembly) with a new one (Refer to REMOVAL [03/2017 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Turn the engine switch on (IG).
    4. Operate the steering wheel and check the steering condition.

    Result: 

    NEXT 

    END 

  28. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
    1. Replace the steering lock ECU (steering lock actuator assembly) with a new one (Refer to REMOVAL [03/2017 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Use the Data List to check if L code certification is functioning properly again.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      L Code Check Verification result between ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator assembly) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • L code has not been registered for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (L code certification result normal) appears on the screen.

      RESULT

      Result Proceed to
      OK A
      NG (w/ ID Code Box) B
      NG (w/o ID Code Box) C

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE ID CODE BOX (IMMOBILISER CODE ECU). Refer to  REMOVAL [03/2017 - ] 

    Result: 

    C 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [03/2017 - ] 

  29. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    1. Replace the certification ECU (smart key ECU assembly) with a new one (Refer to REMOVAL [03/2017 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Use the Data List to check if S code certification is functioning properly again.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (S code certification result normal) appears on the screen.

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  30

  30. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) 
    1. Replace the ID code box (immobiliser code ECU) with a new one (Refer to REMOVAL [03/2017 - ] ).
    2. Perform the registration procedures (Refer to REGISTRATION [03/2017 - 12/2017] Refer to REGISTRATION [12/2017 - ] ).
    3. Use the Data List to check if S code certification is functioning properly again.
      SMART KEY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU) / OK or NG OK: Verification result normal
      NG: Verification result abnormal      		 When NG is displayed:
      • S code has not been registered for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      OK

      OK (S code certification result normal) appears on the screen.

    Result: 

    NEXT 

    END 

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