ENGINE IMMOBILISER SYSTEM(w/ Power Switch) DATA LIST / ACTIVE TEST


  1. DATA LIST

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    Tech Tips

    Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry & Start / Data List.

    5. According to the display on the GTS, read the Data List.

      Entry & Start
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Ignition Switch*10 Power switch status / OFF or ON

      OFF: Power switch off

      ON: Power switch on (IG)

      		 Use this Data List item to help determine the cause when all the entry and start system/wireless functions do not operate.
      Immobilizer when IG=ON Engine immobiliser system status when power switch on (IG) / UNSET or SET

      UNSET: Engine immobiliser system not set with power switch on (IG) or engine immobiliser system unset for 40 times after engine immobiliser system set

      SET: Engine immobiliser system set (driver door open and closed with power switch on (IG))

      		 -
      Immobiliser*10 Engine immobiliser system status determined by certification ECU (smart key ECU assembly) / Set or Unset

      Set: Engine immobiliser system set (hybrid control system start prohibited) (power switch off)

      Unset: Engine immobiliser system unset (hybrid control system start permitted) (power switch on (ACC) or on (IG))

      		 If "Set" is displayed, the hybrid control system start function is prohibited.
      Master Key Whether master key ID code matches ID code registered in certification ECU (smart key ECU assembly) / No Match or Match

      No Match: ID code of master key does not match ID code registered in certification ECU (smart key ECU assembly)

      Match: ID code of master key matches ID code registered in certification ECU (smart key ECU assembly)

      		 -
      Sub Key Whether sub key ID code matches ID code registered in certification ECU (smart key ECU assembly) / No Match or Match

      No Match: ID code of sub key does not match ID code registered in certification ECU (smart key ECU assembly)

      Match: ID code of sub key matches ID code registered in certification ECU (smart key ECU assembly)

      		 -
      BCC Malfunction BCC signal status of transponder chip*1 / OK or NG

      OK: BCC signal normal

      NG: BCC signal malfunction (malfunction in code computation in key/certification ECU (smart key ECU assembly))

      Problems may be caused by the following:


      • Communication errors due to wave interference (LF).

      • Malfunctions in the key or certification ECU (smart key ECU assembly).
      Abnormal Status Transponder chip status signal*1 / OK or NG

      OK: Transponder chip status signal normal

      NG: Transponder chip status signal malfunction (malfunction in code computation in key/certification ECU (smart key ECU assembly))

      Problems may be caused by the following:


      • Communication errors due to wave interference (LF).

      • Malfunctions in the key or certification ECU (smart key ECU assembly).
      Different Encrypt Code Code status between transponder chip and certification ECU (smart key ECU assembly)*1 / OK or NG

      OK: Codes of transponder chip and certification ECU (smart key ECU assembly) match

      NG: Codes of transponder chip and certification ECU (smart key ECU assembly) do not match

      Problems may be caused by the following:


      • A key from a different vehicle is being used.

      • Malfunctions in the key or certification ECU (smart key ECU assembly).
      Different Serial Number Vehicle serial number*1 / OK or NG

      OK: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) match

      NG: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) do not match

      Problems may be caused by the following:


      • A key from a different vehicle is being used.

      • Malfunctions in the key or certification ECU (smart key ECU assembly).
      Frame Error State of data sent from key / OK or NG

      OK: No problem with data sent from key

      NG: Problem with data sent from key

      Problems may be caused by the following:


      • Communication errors due to wave interference.

      • Malfunctions in the key or certification ECU (smart key ECU assembly).
      Response Key response to signal from certification ECU (smart key ECU assembly) / OK or NG

      OK: Key responds to signal from certification ECU (smart key ECU assembly)

      NG: Key does not respond to signal from certification ECU (smart key ECU assembly)

      Problems may be caused by the following:


      • A key from a different vehicle is being used.

      • Malfunctions in the key, certification ECU (smart key ECU assembly) or power switch.
      Wireless Starter Com ID Certification between remote engine start ECU and certification ECU (smart key ECU assembly) / No Regd or Regd

      No Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) not complete

      Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) complete

      		 -
      Wireless C Code Registration status between remote engine start ECU and certification ECU (smart key ECU assembly) / No Regd or Regd

      No Regd: ID not registered between remote engine start ECU and certification ECU (smart key ECU assembly)

      Regd: ID registered between remote engine start ECU and certification ECU (smart key ECU assembly)

      Problem may be caused by the following:


      • DTC B2779 is stored.

      • Remote engine start ECU registration has not been performed.

      • Malfunctions in the certification ECU (smart key ECU assembly) or remote engine start ECU.
      Engine Start Condition Hybrid control system start permission from steering lock ECU (steering lock actuator assembly)*2 / NG or OK

      NG: Steering lock locked (hybrid control system start prohibited)

      OK: Steering lock unlocked (hybrid control system start permitted)

      		 -
      ID-BOX Sleep Condition*10 ID code box (immobiliser code ECU) sleep mode status / No or Yes

      No: ID code box (immobiliser code ECU) sleep mode not possible

      Yes: ID code box (immobiliser code ECU) sleep mode possible

      		 -
      ID-BOX Start Condition ID code box (immobiliser code ECU) status*3 / No or Yes

      No: Wake-up signal not sent by ID code box (immobiliser code ECU)

      Yes: Wake-up signal sent by ID code box (immobiliser code ECU)

      		 -
      Engine Start Request*10 Request to ID code box (immobiliser code ECU) to permit power management control ECU to start hybrid control system*4 / OK or NG

      OK: Hybrid control system start permission request signal received by ID code box (immobiliser code ECU)

      NG: Hybrid control system start permission request signal not received by ID code box (immobiliser code ECU)

      		 -
      3bit Code Request 3-bit code request condition / OK or NG

      OK: 3-bit code request condition signal received

      NG: 3-bit code request condition signal not received

      		 -
      S Code Check S code verification result*5 / OK or NG

      OK: S code verification result normal

      NG: S code verification result abnormal

      Problem may be caused by the following:


      • Registration has not been performed for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).

      • Malfunctions in the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
      L Code Check L code verification result*6 / OK or NG

      OK: L code verification result normal

      NG: L code verification result abnormal

      Problem may be caused by the following:


      • Registration has not been performed for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly).

      • Malfunctions in the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly).
      Unlock Request Receive*10 Status of steering unlock command from certification ECU (smart key ECU assembly)*7 / OK or NG

      OK: Certification ECU (smart key ECU assembly) sends steering unlock command (within 10 seconds of power switch turned on (ACC) or on (IG), or of hybrid control system start operation performed)

      NG: Certification ECU (smart key ECU assembly) does not send steering unlock command (power switch not turned on (ACC) or on (IG), and hybrid control system start operation not performed)

      		 If OK is not displayed even when the steering unlock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
      Lock Request Receive*10 Status of steering lock command from certification ECU (smart key ECU assembly)*8 / OK or NG

      OK: Certification ECU (smart key ECU assembly) sends steering lock command (within 10 seconds of any door opened with shift lever in P and power switch off)

      NG: Certification ECU (smart key ECU assembly) does not send steering lock command (no door opened with shift lever in P and power switch off)

      		 If OK is not displayed even when the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
      S Code Check (Past) S code verification result (past) / OK or NG(Past)

      OK: Verification confirmed (past)

      NG(Past): Verification not confirmed (past)

      		 -
      L Code Check (Past) L code verification result (past) / OK or NG(Past)

      OK: Verification confirmed (past)

      NG(Past): Verification not confirmed (past)

      		 -
      EFI Code Receive*10 Certification information sent to ID code box (immobiliser code ECU) from power management control ECU when power management control ECU receives hybrid control system start permission signal from ID code box (immobiliser code ECU)*9 / OK or NG

      OK: Signal from power management control ECU to unset engine immobiliser received by ID code box (immobiliser code ECU)

      NG: Signal from power management control ECU to unset engine immobiliser not received by ID code box (immobiliser code ECU)

      		 If OK is not displayed, the immobiliser cannot be unset by the power management control ECU.
      EFI communication State of communication to unset immobiliser between ID code box (immobiliser code ECU) and power management control ECU / NG or OK

      NG: Communication to unset immobiliser has not started between ID code box (immobiliser code ECU) and power management control ECU

      OK: Communication to unset immobiliser has started between ID code box (immobiliser code ECU) and power management control ECU

      		 If this item displays "NG" even though the conditions to unset the immobiliser have been met and the Engine Start Request Data List item displays "OK", the power management control ECU may be malfunctioning. When the hybrid control system cannot be started, use this Data List item during troubleshooting.

      Tech Tips


      • *1: This indicates that there is a problem with the communication format between the key and certification ECU (smart key ECU assembly). Wave interference, key or certification ECU (smart key ECU assembly) malfunctions, the key of another vehicle being used, etc. are possible causes.

      • *2: Hybrid control system start is permitted when it is confirmed that the steering is unlocked and there are no malfunctions in the steering lock system. If hybrid control system start is not permitted, a steering lock ECU (steering lock actuator assembly) malfunction (relay, driver, etc.), an IGE circuit malfunction (harness or connector, power management control ECU), or a steering lock sensor malfunction are possible causes.

      • *3: This indicates that transmission of the wake-up signal is possible ("Yes" indicates that the signal to begin verification-related LIN communication is being sent). When the steering lock motor is operating and an IGE ON signal is received (there is a steering lock operation request), or when communication is being performed between the ID code box (immobiliser code ECU) and power management control ECU, the display changes to "Yes".

      • *4: This indicates that the hybrid control system start permission request signal (EGST) output from the power management control ECU is being received by the ID code box (immobiliser code ECU).

      • *5: This indicates the certification results of the certification codes the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU).

      • *6: This indicates the certification results of the certification codes of the steering lock ECU (steering lock actuator assembly) and ID code box (immobiliser code ECU).

        When the steering lock ECU (steering lock actuator assembly) receives an unlock request from the certification ECU (smart key ECU assembly), confirmation of the ID code box (immobiliser code ECU) L code is performed. If the L code matches, the steering lock ECU (steering lock actuator assembly) unlocks the steering.

      • *7: The certification ECU (smart key ECU assembly) outputs a steering unlock request for 10 seconds after the power switch is turned on (ACC) or on (IG), or a hybrid control system start operation is performed.

      • *8: The certification ECU (smart key ECU assembly) outputs a steering lock request for 10 seconds after the power switch is turned off and any door is opened with the shift lever in P.

      • *9: This indicates that the ID code box (immobiliser code ECU) is receiving verification information from the power management control ECU. If the power management control ECU can send the information, the display changes to "OK".

      • *10: Please refer to the following Data List of the actual vehicle.

        A01UXO2E03

        With the power switch off and the shift lever in P, perform the following procedures and check the power source mode.


        • *1: Without depressing the brake pedal, press the power switch and check that the power source mode turns on (ACC).

        • *2: Without depressing the brake pedal, press the power switch and check that the power source mode turns on (IG).

        • *3: While depressing the brake pedal, press the power switch and check that the hybrid control system starts.

        • *4: Press the power switch and check that the power source mode turns off.

        • *5: Door is opened (steering lock operation starts when door is opened).