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DTC B1787: Rear Occupant Classification Sensor LH Collision Detection [08/2013 - ]: Procedure

  1. PERFORM ZERO POINT CALIBRATION 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON, and wait for at least 60 seconds.
    3. Using the Techstream, perform the zero point calibration. Refer to INITIALIZATION [08/2013 - ] .

    NG → See step   3 

    OK: Go to next step 

  2. CHECK FOR DTC 
    1. Turn the ignition switch to ON, and wait for at least 60 seconds.
    2. Clear any DTCs stored in the memory. Refer to DTC CHECK / CLEAR [08/2013 - ] .

      HINT: 

      • First clear DTCs stored in the occupant classification ECU and then in the center airbag sensor assembly.
      • Use the Techstream to clear the DTCs of the occupant classification ECU, otherwise the DTCs cannot be cleared.
    3. Turn the ignition switch off.
    4. Turn the ignition switch to ON, and wait for at least 60 seconds.
    5. Using the Techstream, check for DTCs of the occupant classification ECU. Refer to DTC CHECK / CLEAR [08/2013 - ] .

      OK

      DTC B1787 is not output.

      HINT: 

      DTCs other than DTC B1787 may be output at this time, but they are not related to this check.

      RESULT

      Result Proceed to
      NG A
      OK B

    B → See step   5 

    A: Go to next step 

  3. REPLACE FRONT SEAT CUSHION SPRING ASSEMBLY RH 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Replace the front seat cushion spring assembly RH.

      HINT: 

      Perform the inspection using parts from a normal vehicle when possible.

    NEXT: Go to next step 

  4. PERFORM ZERO POINT CALIBRATION 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON, and wait for at least 60 seconds.
    4. Using the Techstream, perform the zero point calibration. Refer to INITIALIZATION [08/2013 - ] .

    NEXT: Go to next step 

  5. PERFORM SENSITIVITY CHECK 
    1. Using the Techstream, perform the sensitivity check. Refer to INITIALIZATION [08/2013 - ] .

      Standard range

      27 to 33 kg (59.5 to 72.8 lb)

    NEXT → END