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System Check

  1. Connect the HDS to the data link connector.
  2. Turn the ignition switch to ON (II).
  3. Monitor the System Check in the Immobilizer Info with the HDS.
  4. If the HDS displays Normal N-1, the immobilizer system is OK at this time, refer to the STATUS LOG . If the HDS displays any other messages, check as follows:
    SYSTEM CHECK CHART

    System Check No. Status Log. Indication System Check Possible Failures
    A-1 Possible The key is not registered
    • This key is not registered in the immobilizer-keyless control unit. Try to register keys using the HDS.
    • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
    • Poor communication between the antenna and the immobilizer key because of low battery voltage.
    A-2 Possible Communication error between the key and immobilizer-keyless control unit
    • Intermittent interruption between transponder and immobilizer-keyless control unit.
    • The immobilizer key type is different. It is not for this vehicle but for another one or for another company's one.
    • Key failure (transponder failure)
    • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
    • Poor communication between the antenna and the immobilizer key because of low battery voltage.
    A-3 Possible No communication between the key and immobilizer-keyless control unit
    • The ignition switch was turned to ON (II) with a non-immobilizer key.
    • The immobilizer key type is different. It is not for this vehicle but for another one or for another company's one.
    • Key failure (transponder failure)
    • Poor communication between the antenna and the immobilizer key because of interference caused by items such as key chains.
    • Poor communication between the antenna and the immobilizer key because of low battery voltage.
    • Immobilizer-keyless control unit failure
    B-1 Possible The PCM is not registered
    • The PCM was not registered. Try to register the PCM using the HDS.
    • Poor communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    B-2 Possible Error of communication format in PCM
    • The PCM was not registered. Try to register the PCM using the HDS.
    • Poor communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    C-1 Possible MICU/IMOES unit is not registered The MICU/IMOES unit was not registered correctly. Try to register the MICU/IMOES unit using the HDS.
    C-2 Possible Error of communication format between MICU/IMOES unit and immobilizer-keyless control unit.
    • The MICU/IMOES unit was not registered correctly. Try to register the MICU/IMOES unit using the HDS.
    • Poor communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the PCM by influence of some noise.
    D-1 Possible S-Net line short
    • Harness short from the PCM to the immobilizer-keyless control unit. (IMOCD/S-NET line short)
    • Poor communication between the PCM and the immobilizer key-less control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    • Immobilizer-keyless control unit failure
    • PCM failure
    D-2 Possible No communication between MICU/IMOES unit and immobilizer-keyless control unit
    • Blown fuse
    • Harness open from the MICU/IMOES unit to immobilizer-keyless control unit.
    • Poor communication between the MICU/IMOES unit and the immobilizer-keyless control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the MICU/IMOES unit because of electrical interference.
    • Immobilizer-keyless control unit failure
    • MICU/IMOES unit failure
    D-3 Possible No communication between the PCM and immobilizer-keyless control unit
    • Blown fuse
    • Harness open from the PCM to the immobilizer-keyless control unit.
    • Poor communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • Poor communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    • Immobilizer-keyless control unit failure
    • PCM failure
    E-1 Possible initial registration of immobilizer-keyless control unit is not completed The immobilizer-keyless control unit is not registered. Try to register the immobilizer-keyless control unit using the HDS.
    E-2
    E-3
    E-4
    E-5
    F-1 Possible Special Mode Turn the ignition switch to ON (II) and to LOCK (0) with the registered key.
    F-2
    F-3
    F-4
    F-5
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