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Home >> Infiniti >> 2004 >> QX56 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Parking, License & Tail Lamps >> Parking, License Plate And Tail Lamps >> Preliminary Check >> Check Power Supply And Ground Circuit

Check Power Supply And Ground Circuit

  1. CHECK FUSES OR FUSIBLE LINK 
    • Check for blown-out fuses or fusible link.
      Fig 1: Fuse Identification Table
      G02407495Courtesy of NISSAN MOTOR CO., U.S.A.

    Refer to WIRING DIAGRAM - TAIL/L -  .

    OK or NG 

    1. OK: GO TO 2.
    2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to POWER DISTRIBUTION .
  2. CHECK POWER SUPPLY CIRCUIT 
    1. Disconnect BCM connector.
    2. Check voltage between BCM harness connector and ground.
      Fig 2: Terminal Specification Table
      G02407496Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: Checking Voltage Between BCM Harness Connector & Ground
      G02407497Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Check harness for open between BCM and fuse or fusible link.
  3. CHECK GROUND CIRCUIT 

    Check continuity between BCM harness connector and ground.

    Fig 4: Terminal Continuity Specification Chart
    G02407498Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 5: Checking Ground Circuit BCM Harness Connector & Ground
    G02407499Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: INSPECTION END.
    2. NG: Check ground circuit harness.