ENGINE IMMOBILISER SYSTEM 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.

    Tip:

    Using the intelligent tester 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 intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

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

    5. According to the display on the intelligent tester, read the Data List.

      Body Electrical > Entry&Start > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Ignition Switch

      Engine switch status

      ON or OFF

      ON: Engine switch on (IG)

      OFF: Engine switch off

      Use this Data List item to help determine the cause when all the entry and start system/wireless functions do not operate.

      Refer to following *10.

      # Codes

      Number of trouble codes

      Min: 0, Max: 255

      Number of stored DTCs displayed

      -

      Immobilizer when IG=ON

      Engine immobiliser system status when power source mode on (IG)

      SET or UNSET

      SET: Engine immobiliser system set (engine switch off)

      UNSET: Engine immobiliser system unset (engine switch on (ACC) or on (IG))

      -

      Immobiliser

      Engine immobiliser system status determined by certification ECU

      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 engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the certification ECU or ID code box.

      Refer to following *10.

      Master Key

      Whether master key ID code matches ID code registered in certification ECU

      Match or No Match

      Match: ID code of master key matches ID code registered in certification ECU

      No Match: ID code of master key does not matches ID code registered in certification ECU

      -

      Sub Key

      Whether sub-key ID code matches ID code registered in certification ECU

      Match or No Match

      Match: ID code of sub-key matches ID code registered in certification ECU

      No Match: ID code of sub-key does not matches ID code registered in certification ECU

      -

      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)

      Problems may be caused by the following:

      • Communication errors due to external electric wave noise (LF).

      • Malfunctions in the key or certification ECU.

      Abnormal Status

      Transponder chip status signal*1

      OK or NG

      OK: Transponder chip status signal normal

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

      Problems may be caused by the following:

      • Communication errors due to external electric wave noise (LF).

      • Malfunctions in the key or certification ECU.

      Different Encrypt Code

      Code status between transponder chip and certification ECU*1

      OK or NG

      OK: Codes of transponder chip and certification ECU match

      NG: Codes of transponder chip and certification ECU 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.

      Different Serial Number

      Vehicle serial number*1

      OK or NG

      OK: Signal from transponder chip and vehicle serial number stored in the certification ECU match

      NG: Signal from transponder chip and vehicle serial number stored in the certification ECU 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.

      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 external electric wave noise.

      • Malfunctions in the key or certification ECU.

      Response

      Key response to signal from certification ECU

      OK or NG

      OK: Key responds to signal from certification ECU

      NG: Key does not respond to signal from certification ECU

      Problems may be caused by the following:

      • A key from a different vehicle is being used.

      • Malfunctions in the key, certification ECU or engine switch.

      Wireless Starter Com ID

      Certification between remote start ECU and certification ECU

      No Regd or Regd

      No Regd: Certification between remote start ECU and certification ECU not complete

      Regd: Certification between remote start ECU and certification ECU complete

      -

      Wireless C Code

      Registration status between remote start ECU and certification ECU

      No Regd or Regd

      No Regd: ID not registered between remote start ECU and certification ECU

      Regd: ID registered between remote start ECU and certification ECU

      Problems may be caused by the following:

      • DTC B2779 is stored.

      • Remote start ECU registration has not been performed.

      • Malfunctions in the certification ECU or remote start ECU.

      Engine Start Condition

      Engine start permission from certification ECU*2

      OK or NG

      OK: Engine start permitted by certification ECU

      NG: Engine start prohibited by certification ECU

      -

      ID-BOX Sleep Condition

      ID code box sleep mode status

      Yes or No

      Yes: ID code box sleep mode possible

      No: ID code box sleep mode not possible

      Refer to following *10.

      ID-BOX Start Condition

      ID code box status*3

      Yes or No

      Yes: Wake-up signal sent by ID code box

      No: Wake-up signal not sent by ID code box

      -

      Engine Start Request

      Request from certification ECU to ID code box to permit ECM to start engine*4

      OK or NG

      OK: Engine start permission request signal from certification ECU received by ID code box

      NG: Engine start permission request signal not received by ID code box

      If OK is not displayed, the immobiliser cannot be unset by the ECM.

      Refer to following *10.

      3bit Code Request

      3-bit code request condition

      OK or NG

      OK: 3-bit code request condition signal received (past)

      NG: 3-bit code request condition signal not received (past)

      -

      S Code Check

      S code verification result*5

      OK or NG

      OK: S code verification result normal

      NG: S code verification result abnormal

      Problems may be caused by the following:

      • Registration has not been performed for the certification ECU or ID code box.

      • Malfunctions in the certification ECU or ID code box.

      L Code Check

      L code verification result*6

      OK or NG

      OK: L code verification result normal

      NG: L code verification result abnormal

      Problems may be caused by the following:

      • Registration has not been performed for the certification ECU or steering lock ECU.

      • Malfunctions in the certification ECU or steering lock ECU.

      Unlock Request Receive

      Status of steering unlock command from certification ECU*7

      OK or NG

      OK: Certification ECU sends steering unlock command (within 10 seconds of engine switch turned on (ACC) or on (IG), or of engine start operation performed)

      NG: Certification ECU does not send steering unlock command (engine switch not turned on (ACC) or on (IG), and engine start operation not performed)

      If OK is not displayed even when the steering lock unlock conditions are met, the certification ECU may be malfunctioning.

      Refer to following *10.

      Lock Request Receive

      Status of steering lock command from certification ECU*8

      OK or NG

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

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

      If OK is not displayed even when the steering lock lock conditions are met, the certification ECU may be malfunctioning.

      Refer to following *10.

      S Code Check(Past)

      S code verification result (past)

      OK or NG

      OK: Verification confirmed (past)

      NG: Verification not confirmed (past)

      -

      L Code Check(Past)

      L code verification result (past)

      OK or NG

      OK: Verification confirmed (past)

      NG: Verification not confirmed (past)

      -

      EFI Code Receive

      Certification information sent to ID code box from ECM when ECM receives engine start permission signal from ID code box*9

      OK or NG

      OK: Signal from ECM to unset engine immobiliser received by ID code box

      NG: Signal from ECM to unset engine immobiliser not received by ID code box

      Refer to following *10.

      EFI Communication

      State of communication to unset immobiliser between certification ECU and ECM

      OK or NG

      OK: Communication to unset immobiliser has started between certification ECU and ECM

      NG: Communication to unset immobiliser has not started between certification ECU and ECM

      If the 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 ECM may be malfunctioning. When the engine cannot be started, use this Data List item during troubleshooting.

      R Code Check

      State of code verification between certification ECU and remote start ECU (when equipped on vehicle)

      OK or NG

      OK: Code verification between certification ECU and remote start ECU (when equipped on vehicle) normal

      NG: Code verification between certification ECU and remote start ECU (when equipped on vehicle) abnormal

      When there is a problem related to the remote start ECU, use this Data List item during troubleshooting.
      Tip:

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

      • *2: Engine start is permitted when it is confirmed that the steering is unlocked and there are no malfunctions in the steering lock system. If engine start is not permitted, a steering lock ECU 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 and ECM, the display changes to "Yes".

      • *4: This indicates that the engine start permission request signal (EGST) output from the certification ECU is being received by the ID code box.

      • *5: This indicates the certification results of the certification codes of the certification ECU and ID code box.

      • *6: This indicates the certification results of the certification codes of the steering lock ECU and ID code box.

        When the steering lock ECU receives an unlock request from the certification ECU, confirmation of the ID code box L code is performed. If the L code matches, the steering lock ECU unlocks the steering. Also, if the S code verification result does not match, the steering lock will not be unlocked.

      • *7: The certification ECU outputs a steering lock unlock request for 10 seconds after the engine switch is turned on (ACC) or on (IG), or an engine start operation is performed.

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

      • *9: This indicates that the ID code box is receiving verification information from the ECM. If the ECM can send the information, the display changes to "OK".

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

        B252755E06

        With the engine 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 engine switch and check that the power source mode turns on (ACC).

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

        • *3: Depress the brake pedal (the stop light switch turns on).

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

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

  2. ACTIVE TEST

    Tip:

    Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Entry&Start / Active Test.

    5. According to the display on the intelligent tester, perform the Active Test.

      Body Electrical > Entry&Start > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Immobiliser Indicator

      Security indicator light

      ON/OFF

      The test is possible when the following conditions are met:

      • The key is in the cabin.

      • The engine switch is on (IG).