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

Tech Tips

If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.


  1. TRANSPONDER KEY ECU DTC CHART

    Immobiliser
    DTC Code Detection Item Trouble Area See page
    B2780 Push Switch / Key Unlock Warning Switch Malfunction

    - Transponder key ECU

    - Unlock warning switch

    - Harness or connector

    Click here

    B2784 Antenna Coil Open / Short

    - Transponder key ECU

    - Transponder key amplifier

    - Harness or connector

    Click here

    B2793 Transponder Chip Malfunction Key

    Click here

    B2794 Unmatched Encryption Code Key

    Click here

    B2795 Unmatched Key Code Key

    Click here

    B2796 No Communication in Immobiliser System

    - Transponder key ECU

    - Key

    - Harness or connector

    - Transponder key amplifier

    Click here

    B2797 Communication Malfunction No. 1

    - Key

    - Harness or connector

    - Transponder key ECU

    - Transponder key amplifier

    Click here

    B2798 Communication Malfunction No. 2 Key

    Click here

  2. ECM DTC CHART

    Tech Tips

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

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

    - Harness or connector

    - Transponder key ECU

    - ECM

    Click here

    B279A Theft Deterrent System Communication Line High Fixation

    - Harness or connector

    - Transponder key ECU

    - ECM

    Click here

    B279C Theft Deterrent System Presence Detection ECM

    Click here