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Home >> Toyota >> 2023 >> Prius LE AWD >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Occupant Classification System - Diagnostic Codes, Symptom Tests & Circuit Tests >> Occupant Classification System >> DTC B00C0-28: Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure [12/2022 - ] >> Procedure
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DTC B00C0-28: Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure [12/2022 - ]: Procedure

  1. PERFORM ZERO POINT CALIBRATION 
    1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

      HINT: 

      Refer to INITIALIZATION [12/2022 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CLEAR DTC 

    Pre-procedure1

    • Turn the ignition switch to ON, and wait for at least 60 seconds.
    • Clear the DTCs stored in memory.

      Body Electrical > SRS Airbag > Clear DTCs 

      Result

      Proceed to
      NEXT

    Post-procedure1

    • Turn the ignition switch off.

    Result: 

    NEXT 

    See step  3

  3. CHECK DTC 

    Pre-procedure1

    • Turn the ignition switch to ON, and wait for at least 60 seconds.
    • Check the DTCs.

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Result Proceed to
      B00C0-28 is output A
      B00C0-28 is not output B

    Post-procedure1

    • None

    Result: 

    END (NORMAL AFTER PERFORMING ZERO POINT CALIBRATION) 

    Result: 

    See step  4

  4. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH 

    Pre-procedure1

    • Turn the ignition switch off.
    • Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.

    Post-procedure1

    • Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

    Result: 

    NEXT 

    See step  5

  5. PERFORM ZERO POINT CALIBRATION 
    1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

      HINT: 

      Refer to INITIALIZATION [12/2022 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END (FRONT SEAT ADJUSTER ASSEMBLY RH WAS DEFECTIVE)