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Diagnostic Trouble Code Chart

  1. If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the step listed for that circuit). 

    HINT:

    When DTC B1650/32 is detected as a result of troubleshooting for the "AIRBAG SYSTEM", perform troubleshooting for the occupant classification system as shown in OCCUPANT CLASSIFICATION ECU DIAGNOSTIC TROUBLE CODE  .

    Occupant Classification ECU 

    OCCUPANT CLASSIFICATION ECU DIAGNOSTIC TROUBLE CODE

    DTC No. Detection Item Trouble Area
    B1771  Passenger Side Buckle Switch Circuit Malfunction
    1. Front seat inner belt assembly RH (Buckle switch RH)
    2. Occupant classification ECU
    3. Floor wire (*1)
    4. Instrument panel wire No. 3 (*2)
    B1780  Front Occupant Classification Sensor LH Circuit Malfunction
    1. Front seat back assembly RH (front occupant classification sensor LH)
    2. Occupant classification ECU
    3. Front seat wire RH
    B1781  Front Occupant Classification Sensor RH Circuit Malfunction
    1. Front seat back assembly RH (front occupant classification sensor RH)
    2. Occupant classification ECU
    3. Front seat wire RH
    B1782  Rear Occupant Classification Sensor LH Circuit Malfunction
    1. Front seat back assembly RH (rear occupant classification sensor LH)
    2. Occupant classification ECU
    3. Front seat wire RH
    B1783  Rear Occupant Classification Sensor RH Circuit Malfunction
    1. Front seat back assembly RH (front occupant classification sensor RH)
    2. Occupant classification ECU
    3. Front seat wire RH
    B1785  Front Occupant Classification Sensor LH Collision Detection
    1. Front seat back assembly RH (front occupant classification sensor LH)
    2. Occupant classification ECU
    B1786  Front Occupant Classification Sensor RH Collision Detection
    1. Front seat back assembly RH (front occupant classification sensor RH
    2. Occupant classification ECU
    B1787  Rear Occupant Classification Sensor LH Collision Detection
    1. Front seat back assembly RH (rear occupant classification sensor LH)
    2. Occupant classification ECU
    B1788  Rear Occupant Classification Sensor RH Collision Detection
    1. Front seat back assembly RH (rear occupant classification sensor RH)
    2. Occupant classification ECU
    B1790  Center Airbag Sensor Assembly Communication Circuit Malfunction
    1. Occupant classification ECU
    2. Center airbag sensor assembly
    3. Floor wire (*1)
    4. Instrument panel wire No. 3 (*2)
    B1793  Occupant Classification Sensor Power Supply Circuit Malfunction
    1. Occupant classification sensors
    2. Occupant classification ECU
    3. Front seat wire RH
    B1795  Occupant Classification ECU Malfunction
    1. Battery
    2. ECU-B Fuse
    3. Floor wire (*1)
    4. Instrument panel wire No. 3 (*2)
    5. Front seat inner belt assembly RH (Buckle switch RH)
    6. Occupant classification ECU
    B1796  Sleep Operation Failure of Occupant Classification ECU
    1. Occupant classification ECU
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