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ENGINE IMMOBILISER SYSTEM (w/o Smart Entry and Start System) DIAGNOSTIC TROUBLE CODE CHART

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  1. TRANSPONDER KEY ECU ASSEMBLY DIAGNOSTIC TROUBLE CODE CHART

    Table 1. TRANSPONDER KEY ECU
    DTC Code Detection Item Trouble Area See page
    B2780 Push Switch / Key Unlock Warning Switch Malfunction

    1. Wire harness or connector

    2. Unlock warning switch assembly

    3. Transponder key ECU assembly

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    B2784 Antenna Coil Open / Short

    1. Wire harness or connector

    2. Transponder key amplifier

    3. Transponder key ECU assembly

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    B2793 Transponder Chip Malfunction Key

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    B2794 Unmatched Encryption Code Key

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    B2795 Unmatched Key Code Key

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    B2796 No Communication in Immobiliser System

    1. Wire harness or connector

    2. Transponder key amplifier

    3. Transponder key ECU assembly

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    B2797 Communication Malfunction No. 1

    1. Wire harness or connector

    2. Transponder key amplifier

    3. Transponder key ECU assembly

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    B2798 Communication Malfunction No. 2

    1. Wire harness or connector

    2. Transponder key amplifier

    3. Transponder key ECU assembly

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  2. ECM DIAGNOSTIC TROUBLE CODE CHART

    Tip:

    The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the SFI system.

    Table 2. ECM
    DTC Code Detection Item Trouble Area See page
    B2799 Engine Immobiliser System Malfunction

    1. Wire harness or connector

    2. ECM

    3. Transponder key ECU assembly

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    B279A Theft Deterrent System Communication Line High Fixation

    1. Wire harness or connector

    2. ECM

    3. Transponder key ECU assembly

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    B279C Theft Deterrent System Presence Detection ECM

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