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Home >> Nissan-Datsun >> 2014 >> Leaf SL >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System >> DTC/Circuit Diagnosis >> DTC B00A0: Occupant Classification System Control Unit >> Diagnosis Procedure
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Diagnosis Procedure

  1. HARNESS CONNECTOR 

    Visually inspect all applicable harness connectors for the following:

    • Visible damage to connector or terminal
    • Loose terminal
    • Poor connection
      NOTE: All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors)

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Perform the following repairs:

      • Visible damage: Replace the harness.
      • Loose terminal: Secure the terminal.
      • Poor connection: Secure the connection.
  2. CONFIRM DTC 
    1. Reconnect all harness connectors.
    2. Turn ignition switch ON.
    3. Check for DTC using CONSULT.

      Is DTC still current? 

      YES: GO TO 3.

      NO: Refer to "INTERMITTENT INCIDENT ".

  3. WIRING HARNESS 

    Check the wiring harness for visible damage

    NOTE: The entire wiring harness should be inspected from the air bag diagnosis sensor to the end component (including and in-line connectors).

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Replace the harness.

  4. CONFIRM DTC 
    1. Reconnect all harness connectors.
    2. Turn ignition switch ON.
    3. Check for DTC using CONSULT.

      Is DTC still current? 

      YES: GO TO 5.

      NO: Refer to "INTERMITTENT INCIDENT ".

  5. REPLACE OCS CONTROL UNIT AND SENSORS 
    1. Replace the OCS control unit and sensors. Refer to "REMOVAL AND INSTALLATION ".
    2. Turn ignition switch ON.
    3. Check for DTC using CONSULT.

      Is DTC still current? 

      YES: GO TO 6.

      NO: Clear DTC. Inspection End.

  6. AIR BAG DIAGNOSIS SENSOR UNIT 
    1. Replace the air bag diagnosis sensor unit. Refer to "REMOVAL AND INSTALLATION ".
    2. Turn ignition switch ON.
    3. Check for DTC using CONSULT.

      Is DTC still current? 

      YES: GO TO 7.

      NO: Clear DTC. Inspection End.

  7. RELATED HARNESS 

    Replace the related harness

    : END.