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Steering Lock does not Lock [04/2013 - 09/2022]: Procedure

  1. READ VALUE USING TECHSTREAM (LOCK REQUEST RECEIVE) 
    1. Use the Data List to check if the steering lock command is functioning properly.

      Body Electrical > Smart Access > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Lock Request Receive Reception state of steering lock request signal by certification ECU (smart key ECU assembly) sent to ID code box (immobiliser code ECU)
      HINT: 
      • The reception state is maintained for 10 seconds.
      • When 10 seconds or more elapsed after receiving the signal, the item changes to "NG".
      		 OK or NG OK: Within 10 seconds of opening any door with engine switch off and shift lever in P
      NG: Except above      		 If this item does not change to "OK" even though the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.

      Body Electrical > Smart Access > Data List 

      Tester Display
      Lock Request Receive

      OK

      The certification ECU (smart key ECU assembly) receives a lock request signal within 10 seconds of turning the engine switch from on (IG) to off and opening a door with the shift lever in P, and OK is displayed on the Techstream screen.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  4

    Result: 

    OK 

    See step  2

  2. INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) (MOTOR ACTIVATION COMMAND SIGNAL) 

    HINT: 

    See step  1

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) 

    HINT: 

    See step  4

    Result

    Proceed to
    OK
    NG

    Result: 

    OK 

    REPLACE STEERING LOCK ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [04/2013 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  4. READ VALUE USING TECHSTREAM (FL DOOR COURTESY SW) 
    1. Using the Techstream, check the following main body ECU (multiplex network body ECU) Data List item by opening and closing the driver door to confirm the state of the front door courtesy light switch assembly.

      Body Electrical > Main Body > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      FL Door Courtesy SW Front door courtesy light switch assembly LH ON or OFF ON: Front door LH open
      OFF: Front door LH closed      		 If this item does not change according to the actual state of the driver door, there is a malfunction in the door courtesy light switch or a related part.

      Body Electrical > Main Body > Data List 

      Tester Display
      FL Door Courtesy SW

      OK

      The Data List item changes in accordance with the opening and closing of the driver door.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO LIGHTING SYSTEM (FRONT DOOR COURTESY SWITCH CIRCUIT). Refer to  Front Door Courtesy Switch Circuit [04/2013 - ] 

    Result: 

    OK 

    See step  5

  5. READ VALUE USING TECHSTREAM (S CODE CHECK) 
    1. Use the Data List to check if S code certification is functioning properly.

      Body Electrical > Smart Access > Data List 

      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 a malfunction is present:
      • The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is not registered or the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is malfunctioning.
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      Body Electrical > Smart Access > Data List 

      Tester Display
      S Code Check

      OK

      OK is displayed on the Techstream.

      HINT: 

      Reasons for verification failure:

      • The certification ECU (smart key ECU assembly) or 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  9

    Result: 

    OK 

    See step  6

  6. READ VALUE USING TECHSTREAM (L CODE CHECK) 
    1. Use the Data List to check if L code certification is functioning properly.

      Body Electrical > Smart Access > Data List 

      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 a malfunction is present:
      • The ID code for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly) is not registered or the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly) is malfunctioning.
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      Body Electrical > Smart Access > Data List 

      Tester Display
      L Code Check

      OK

      OK is displayed on the Techstream.

      HINT: 

      Reasons for verification failure:

      • The steering lock ECU (steering lock actuator assembly) or 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.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  8

    Result: 

    OK 

    See step  7

  7. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
    1. Replace the steering lock ECU (steering lock actuator assembly) with a new one.

      Refer to DISASSEMBLY [04/2013 - ]

    2. Perform registration.

      Refer to REGISTRATION [04/2013 - 06/2014] , or refer to REGISTRATION [06/2014 - 08/2015] , or refer to REGISTRATION [08/2015 - 10/2017] , or refer to REGISTRATION [10/2017 - 09/2020] , or refer to REGISTRATION [09/2020 - 11/2021] , or refer to REGISTRATION [11/2021 - 09/2022]

    3. Turn the engine switch on (IG).
    4. Turn the steering wheel and check the steering condition.

      OK

      Steering is unlocked.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [04/2013 - 08/2015]  , or refer to  REMOVAL [08/2015 - 09/2020]  , or refer to  REMOVAL [09/2020 - ] 

  8. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) 
    1. Replace the ID code box (immobiliser code ECU) with a new one.

      Refer to REMOVAL [04/2013 - ]

    2. Perform registration.

      Refer to REGISTRATION [04/2013 - 06/2014] , or refer to REGISTRATION [06/2014 - 08/2015] , or refer to REGISTRATION [08/2015 - 10/2017] , or refer to REGISTRATION [10/2017 - 09/2020] , or refer to REGISTRATION [09/2020 - 11/2021] , or refer to REGISTRATION [11/2021 - 09/2022]

    3. Use the Data List to check if L code certification is functioning properly.

      Body Electrical > Smart Access > Data List 

      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 a malfunction is present:
      • The ID code for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly) is not registered or the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly) is malfunctioning.
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      Body Electrical > Smart Access > Data List 

      Tester Display
      L Code Check

      OK

      OK is displayed on the Techstream.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE STEERING LOCK ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [04/2013 - ] 

  9. REPLACE ID CODE BOX (IMMOBILISER CODE ECU) 
    1. Replace the ID code box (immobiliser code ECU) with a new one.

      Refer to REMOVAL [04/2013 - ]

    2. Perform registration.

      Refer to REGISTRATION [04/2013 - 06/2014] , or refer to REGISTRATION [06/2014 - 08/2015] , or refer to REGISTRATION [08/2015 - 10/2017] , or refer to REGISTRATION [10/2017 - 09/2020] , or refer to REGISTRATION [09/2020 - 11/2021] , or refer to REGISTRATION [11/2021 - 09/2022]

    3. Use the Data List to check if S code certification is functioning properly.

      Body Electrical > Smart Access > Data List 

      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 a malfunction is present:
      • The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is not registered or the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is malfunctioning.
      • The steering cannot be locked.
      • The steering cannot be unlocked (the engine cannot be started).

      Body Electrical > Smart Access > Data List 

      Tester Display
      S Code Check

      OK

      OK is displayed on the Techstream.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [04/2013 - 08/2015]  , or refer to  REMOVAL [08/2015 - 09/2020]  , or refer to  REMOVAL [09/2020 - ] 

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