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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Interior Lighting System (Circuit Diagnosis) (Except Hybrid) >> Circuit Diagnosis >> Outside Handle Lamp Circuit >> Diagnosis Procedure

Diagnosis Procedure

NOTE: Before performing the diagnosis, check that the interior room lamp power supply is normal.
  1. CHECK OUTSIDE HANDLE LAMP OUTPUT 
    1. Turn ignition switch OFF.
    2. Disconnect outside handle lamp connector.
    3. Check continuity between BCM harness connector and ground.

    BCM

    Ground

    Condition

    Continuity

    Connector

    Terminal

    M123

    72

    Any door

    Open

    Existed

    Closed

    Not existed

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Continuity exists and remains unchanged: GO TO 3.

    NO

    Continuity does not exist and remains unchanged: Replace BCM. Refer to Removal and Installation .

  2. CHECK OUTSIDE HANDLE LAMP OPEN CIRCUIT 

    Check continuity between BCM harness connector and outside handle lamp harness connector.

    BCM

    Outside Handle lamp

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    M123

    72

    Driver side

    D17

    4

    Existed

    Passenger side

    D47

    Is the inspection result normal?

    YES

    Replace outside handle lamp.

    NO

    Repair or replace harnesses.

  3. CHECK OUTSIDE HANDLE LAMP SHORT CIRCUIT 

    Check continuity between BCM harness connector and ground.

    BCM

    Ground

    Continuity

    Connector

    Terminal

    M123

    72

    Not existed

    Is the inspection result normal?

    YES

    Replace BCM. Refer to Removal and Installation .

    NO

    Repair or replace harnesses.

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