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Home >> Infiniti >> 2015 >> Q60 Base, 2D Convertible >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock (Convertible) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Retractable Hard Top Control Unit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSE AND FUSIBLE LINK

    Check that the following fuse and fusible link are not blown.

    Signal name Fuse and fusible link No.
    Battery power supply O

    Is the fuse fusing?

    YES 

    Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.

    NO 

    GO TO STEP 2. 

  2. CHECK POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect retractable hard top control unit connectors.
    3. Check voltage between retractable hard top control unit harness connector and ground.
      Terminals Voltage
      (Approx.)
      (+) (-)
      Retractable hard top control unit Ground
      Connector Terminal
      B84 57 Battery voltage
      58
      59

    Is the measurement value normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair harness or connector.

  3. CHECK GROUND CIRCUIT

    Check continuity between retractable hard top control unit harness connector and ground.

    Retractable hard top control unit Ground Continuity
    Connector Terminal
    B84 60 Existed
    61

    Does continuity exist?

    YES 

    INSPECTION END

    NO 

    Repair harness or connector.

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