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OCCUPANT CLASSIFICATION SYSTEM, Diagnostic DTC:B1795

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DTC Code DTC Name
B1795 Occupant Classification ECU Malfunction
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DESCRIPTION

DTC B1795 is stored when a malfunction is detected in the occupant detection ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1795 Occupant Classification ECU Malfunction Occupant detection ECU malfunction Occupant detection ECU
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CAUTION / NOTICE / HINT

Note:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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Tip:

When DTC B1650 is stored as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant detection ECU. When DTC B1795 is output, perform troubleshooting for this DTC first.

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PROCEDURE


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    CHECK DTC


    1. Turn the ignition switch to ON, and wait for at least 60 seconds.

    2. Clear the DTCs stored in the occupant detection ECU.


      1. Body Electrical > Occupant Detection > Clear DTCs


    3. Clear the DTCs stored in the airbag sensor assembly.


      1. Body Electrical > SRS Airbag > Clear DTCs


    4. Turn the ignition switch off.

    5. Turn the ignition switch to ON, and wait for at least 10 seconds.

    6. Check for DTCs.


      1. Body Electrical > Occupant Detection > Trouble Codes


      OK
      DTC B1795 is not output.
      Tip:

      Codes other than DTC B1795 may be output at this time, but they are not related to this check.

    7. Turn the ignition switch off.

      Result
      Proceed to
      OK
      NG

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    REPLACE OCCUPANT DETECTION ECU


    1. Turn the ignition switch off.

    2. Disconnect the cable from the negative (-) battery terminal.

    3. Replace the occupant detection ECU with a new one.

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    4. Connect the cable to the negative (-) battery terminal.

      Result
      Proceed to
      NEXT

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    PERFORM ZERO POINT CALIBRATION


    1. Using the GTS, perform Zero Point Calibration.

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      Result
      Proceed to
      NEXT

    • NEXT

      END