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Check Power Supply And Ground Circuit

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUSES 
    • Check for blown fuses.
      FUSES CHECK CHART

      Unit Power source Fuse No.
      BCM Battery F
      Ignition switch ON or START position 1
      Ignition switch ACC or ON position 6
      IPDM E/R Battery 88

    Refer to , "WIRING DIAGRAM - DTRL - ".

    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.
      VOLTAGE CHECK CHART

      Terminals Ignition switch position
      (+) (-) OFF ACC ON
      Connector Terminal (Wire color)
      M34 11 (P/G) Ground 0V Battery voltage Battery voltage
      38 (R) 0V 0V Battery voltage
      M35 42 (GR) Battery voltage Battery voltage Battery voltage
      55 (W/R) Battery voltage Battery voltage Battery voltage
      Fig 1: Checking Voltage Between BCM Harness Connector And Ground
      G03491960Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

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

    Check continuity between BCM harness connector and ground.

    CONTINUITY CHECK CHART

    Terminals Continuity
    (+) (-)
    Connector Terminal (Wire color)
    M35 49 (B) Ground Yes
    52 (B)
    Fig 2: Checking Continuity Between BCM Harness Connector And Ground
    G03491961Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

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