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Home >> Infiniti >> 2019 >> QX30 Pure >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> SRS Airbag Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC U1175: Can Communication System (Electronic Ignition Switch Control Unit) >> Diagnosis Procedure
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Diagnosis Procedure

  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 ELECTRONIC IGNITION SWITCH CONTROL UNIT 
    1. Replace electronic ignition switch control unit. Refer to Removal and Installation .
    2. Perform DTC confirmation procedure. Refer to DTC Description .

    Is DTC detected?

    YES

    GO TO 4.

    NO

    INSPECTION END

  4. 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

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