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System Check

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  1. Connect the HDS to the data link connector (DLC).
  2. Turn the ignition switch to ON (II).
  3. Monitor the SYSTEM CHECK in the IMMOBILIZER INFO with the HDS.
    NOTE: If the HDS does not communicate with the immobilizer-keyless control unit, check the power, ground, and K-line connectors.
  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 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.
    • No communication between the antenna and the immobilizer key because of interference from metal such as key chains/key rings/other keys.
    • 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)
    • No communication between the antenna and the immobilizer key because of interference from metal such as key chains/key rings/other keys.
    • 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)
    • No communication between the antenna and the immobilizer key because of interference from metal such as key chains/key rings/other keys.
    • 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.
    • No communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    • Open in the IG1 line
    B-2 Possible Error of communication format in PCM
    • The PCM was not registered. Try to register the PCM using the HDS.
    • No communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    C-1 Possible The imoes unit is not registered
    • The imoes unit was not registered.
    • No communication between the imoes unit and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the imoes unit and the immobilizer-keyless control unit because of interference.
    • Try to register the imoes unit with the HDS.
    C-2 Possible Error of communication format in imoes unit
    • The imoes unit was not registered.
    • No communication between the imoes unit and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the imoes unit and the immobilizer-keyless control unit because of interference.
    • Try to register the imoes unit with the HDS.
    D-1 Possible S-NET line short
    • Harness short from the PCM to the immobilizer-keyless control unit. (IMOCD(S-NET) line short)
    • No communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • No 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 imoes unit and immobilizer-keyless control unit
    • Blown fuse
    • Harness open from the imoes unit to immobilizer-keyless control unit. (IMOCD (S-NET) line open)
    • NO communication between the imoes unit and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the imoes unit and immobilizer-keyless control unit because of electrical interference.
    • Immobilizer-keyless control unit failure
    • 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.
    • No communication between the PCM and the immobilizer-keyless control unit because of low battery voltage.
    • No communication between the immobilizer-keyless control unit and the PCM because of electrical interference.
    • Immobilizer-keyless control unit failure
    • PCM failure
    E-1 -- 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 -- 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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