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Home >> Toyota >> 2010 >> Prius PHV >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Occupant Classification System (Diagnostic Codes & Symptom Tests) (PHV) >> Occupant Classification System >> DTC B1787: Rear Occupant Classification Sensor LH Collision Detection >> Procedure
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DTC B1787: Rear Occupant Classification Sensor LH Collision Detection: Procedure

  1. PERFORM ZERO POINT CALIBRATION 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Using the Techstream, perform Zero Point Calibration. Refer toINITIALIZATION .

      OK

      "Zero Point Calibration is complete." is displayed.

    NG → See step   3 

    OK: Go to next step 

  2. CHECK DTC 
    1. Turn the power switch on (IG).
    2. Clear the DTCs stored in the occupant classification ECU. Refer toDTC CHECK / CLEAR .
    3. Clear the DTCs stored in the center airbag sensor assembly. Refer toDTC CHECK / CLEAR .
    4. Turn the power switch off.
    5. Turn the power switch on (IG).
    6. Check for DTCs. Refer toDTC CHECK / CLEAR .

      OK

      DTC B1787 is not output.

      HINT: 

      Codes 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 
    1. Turn the power switch off.
    2. Disconnect the cable from the negative (-) battery terminal.
    3. Replace the front seat cushion spring assembly. Refer toDISASSEMBLY .

    NEXT: Go to next step 

  4. PERFORM ZERO POINT CALIBRATION 
    1. Connect the cable to the negative (-) battery terminal.
    2. Connect the Techstream to the DLC3.
    3. Turn the power switch on (IG).
    4. Using the Techstream, perform Zero Point Calibration. Refer toINITIALIZATION .

      OK

      "Zero Point Calibration is complete." is displayed.

    NEXT: Go to next step 

  5. PERFORM SENSITIVITY CHECK 
    1. Using the Techstream, perform Sensitivity Check. Refer toINITIALIZATION .

      Standard

      27 to 33 kg (59.5 to 72.8 lb)

    NEXT → END