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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door Lock (Except Hybrid) >> Symptom Diagnosis >> Door Does Not Lock/Unlock And Engine Does Not Start (Req SW/Push SW) (All Keys) >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INTELLIGENT KEY SYSTEM SYMPTOM TABLE 

    Check Intelligent Key system symptom table.

    Refer to Diagnosis Procedure .

    GO TO 2.

  2. CHECK OUTSIDE KEY ANTENNA AND INSIDE KEY ANTENNA 

    Use SIGNAL TECH II to check each outside key antenna and inside key antenna. For the inspection method and how to use SIGNAL TECH II, refer to "NISSAN/INFINITI SIGNAL TECH II USER GUIDE".

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace the malfunctioning parts.

  3. REGISTER INTELLIGENT KEY 
    1. Register the Intelligent Key again.
    2. Check operation after replacement.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 4.

  4. REPLACE INTELLIGENT KEY 
    1. Replace the Intelligent Key and perform registration again.
    2. Check operation after replacement.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 5.

  5. REPLACE BCM 
    1. Replace BCM. Refer to Removal and Installation .
    2. Check operation after replacement.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Check intermittent incident. Refer to Intermittent Incident .

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