ENGINE IMMOBILISER SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips


    • 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.

    • If the ignition switch cannot be turned to ON, communication with the intelligent tester can be performed by connecting the intelligent tester to the vehicle and turning a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the intelligent tester and vehicle begins.

    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.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Immobiliser / Data List.

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

      Immobiliser
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door Courtesy SW Driver side door courtesy light switch / ON or OFF

      ON: Driver side door open

      OFF: Driver side door closed

      -
      Key SW Unlock warning switch signal / ON or OFF

      ON: Key inserted in ignition key cylinder

      OFF: No key in ignition key cylinder

      -
      IG SW*2 Ignition switch signal / ON or OFF

      ON: Ignition switch ON

      OFF: Ignition switch ACC or off

      -
      Immobiliser*2 Engine immobiliser system status determined by transponder key ECU assembly / Set or Unset

      Set: Engine immobiliser set (engine start prohibited [no key in ignition key cylinder])

      Unset: Engine immobiliser unset (engine start permitted [key inserted in ignition key cylinder])

      When the engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the transponder key ECU assembly.
      Response Key response to signal from transponder key ECU assembly / OK or NG

      OK: Key responds to signal from transponder key ECU assembly

      NG: Key does not respond to signal from transponder key ECU assembly

      Problems may be caused by the following:


      • A key from a different vehicle is being used.

      • Malfunctions in the key, transponder key ECU assembly or transponder key amplifier.

      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, transponder key ECU assembly or transponder key amplifier.

      Different Serial Number*1 Vehicle serial number / OK or NG

      OK: Signal from transponder chip and vehicle serial number stored in transponder key ECU assembly match

      NG: Signal from transponder chip and vehicle serial number stored the transponder 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, transponder key ECU assembly or transponder key amplifier.

      Different Encrypt Code*1 Code status between transponder chip and transponder key ECU assembly / OK or NG

      OK: Codes of transponder chip and transponder key ECU assembly match

      NG: Codes of transponder chip and transponder 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, transponder key ECU assembly or transponder key amplifier.

      Abnormal Status*1 Transponder chip status signal / OK or NG

      OK: Transponder chip status signal normal

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

      Problems may be caused by the following:


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

      • Malfunctions in the key, transponder key ECU assembly or transponder key amplifier.

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

      OK: BCC signal normal

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

      Problems may be caused by the following:


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

      • Malfunctions in the key, transponder key ECU assembly or transponder key amplifier.

      Sub Key Whether sub-key ID code matches ID code registered in transponder key ECU assembly / Reg or Unreg

      Reg: ID code of sub-key matches ID code registered in transponder key ECU assembly

      Unreg: ID code of sub-key does not match ID code registered in transponder key ECU assembly

      -
      Master Key Whether master key ID code matches ID code registered in transponder key ECU assembly / Reg or Unreg

      Reg: ID code of master key matches ID code registered in transponder key ECU assembly

      Unreg: ID code of master key does not match ID code registered in transponder key ECU assembly

      -
      Transponder S-code Number of registered sub-keys / min.: 0, max.: 3 Number of registered sub-keys -
      Transponder M-code Number of registered master keys / min.: 0, max.: 5 Number of registered master keys -
      Reg Code Space Full Key registration code memory space full / Yes or No

      No: Possible to register more key codes

      Yes: Cannot register any more key codes

      -
      +B +B judgment / Normal or Break

      Normal: Battery power supply normal

      Break: Battery power supply malfunctioning

      -
      Antenna Coil Status Antenna coil condition / Normal or Fail

      Normal: Antenna coil normal

      Fail: Antenna coil malfunctioning

      -
      EEPROM Status EEPROM status / OK or NG

      OK: Data OK

      NG: Data error

      -
      E/G Start Permission*2 Engine start permission / OK or NG

      OK: Engine start permitted

      NG: Engine start not permitted

      -
      Immobi ECU Comm Spd Immobiliser ECU communication speed / Unknown, 50bps, 200bps or No Res

      Unknown: ECU communication speed unknown

      50bps: ECU communication speed 50 bps

      200bps: ECU communication speed 200 bps

      No Res: No response regarding ECU communication speed

      -
      The Number of DTCs Number of DTCs / Min.: 0, Max.: 255 Number of stored DTCs -

      Tech Tips


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

      • *2: Refer to the following Data List items of an actual vehicle.

        A01DZISE01

      • *1: Without depressing the brake pedal (for Automatic Transmission) or clutch pedal (for Manual Transmission), insert the key into the ignition key cylinder and turn the ignition switch to ACC.

      • *2: Without depressing the brake pedal (for Automatic Transmission) or clutch pedal (for Manual Transmission), turn the ignition switch to IG.

      • *3: Turn the ignition switch off and remove the key from the ignition key cylinder.

  2. ACTIVE TEST

    Tech Tips


    • 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.

    • If the ignition switch cannot be turned to ON, communication with the intelligent tester can be performed by connecting the intelligent tester to the vehicle and turning a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the intelligent tester and vehicle begins.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Immobiliser / Active Test.

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

      Immobiliser
      Tester Display Test Part Control Range Diagnostic Note
      Security Indicator Security indicator light ON/OFF

      The test is possible when the following condition is met:


      • The key is in the ignition key cylinder.