OCCUPANT CLASSIFICATION SYSTEM, Diagnostic DTC:B1796

DTC Code DTC Name
B1796 Sleep Operation Failure of Occupant Classification ECU

DESCRIPTION

In sleep mode, the occupant classification ECU reads the condition of each sensor while the ignition switch is off.

In this mode, if occupant classification ECU detects an internal malfunction, DTC B1796 is output.

DTC No. DTC Detection Condition Trouble Area
B1796

  • Occupant classification ECU malfunction

  • Occupant classification ECU

Tech Tips

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant classification ECU. When DTC B1796 is output, perform troubleshooting for the DTC.

INSPECTION PROCEDURE

PROCEDURE


  1. REPLACE OCCUPANT CLASSIFICATION ECU


    1. Turn the ignition switch off.

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

    3. Replace the occupant classification ECU Click here.


    NEXT

  2. PERFORM ZERO POINT CALIBRATION


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

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Using the GTS, perform Zero Point Calibration Click here.

      OK
      "Zero Point Calibration is complete." is displayed.

    NEXT

  3. PERFORM SENSITIVITY CHECK


    1. Using the GTS, perform Sensitivity Check Click here.

      Standard
      27 to 33 kg (59.5 to 72.8 lb)

    NEXT

    END