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Home >> Infiniti >> 2013 >> JX35 FWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System >> DTC/Circuit Diagnosis >> DTC B1086, B1087, B1088, B1089: Seat Belt Pre-TENSIONER LH >> Diagnosis Procedure

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 sensor unit to the end component (including any in-line connectors).

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Perform one of 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 unit to the end component (including any 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. 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 6.

      NO: Clear DTC. Inspection End.

  6. SEAT BELT PRE-TENSIONER LH 
    1. Replace the seat belt pre-tensioner LH. 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