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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 232 (SRS Airbag Control System (DTCS)) >> DTC/Circuit Diagnosis >> DTC B1415: Air Bag Diagnosis Sensor Unit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3 minutes or more (to discharge backup capacitor).
  • Never use unspecified tester or other measuring device.
  1. CHECK HARNESS CONNECTOR 

    Check the harness connector for disconnection, looseness or damage.

    Is the inspection result normal?

    YES

    GO TO 2 .

    NO

    Damage: Replace malfunctioning harness and connector.

    NO

    Disconnection or looseness: Securely lock the connector.

  2. CHECK WIRING HARNESS 

    Check the wiring harness externals.

    Is the inspection result normal?

    YES

    GO TO 3 .

    NO

    Replace malfunctioning harness and connector.

  3. REPLACE AIR BAG DIAGNOSIS SENSOR UNIT 
    1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation .
    2. Perform DTC confirmation procedure. Refer to DTC Description .

    Is DTC detected?

    YES

    GO TO 1 .

    NO

    Inspection End.