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Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC WITH "COMBINATION METER"

    Check "Self diagnostic result" with CONSULT-III. Refer to "DTC INDEX ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace malfunctioning parts.

  2. CHECK CVT DEVICE POWER SUPPLY
    1. Turn ignition switch to ACC.
    2. Disconnect CVT device harness connector.
    3. Check voltage between CVT device harness connector and ground.
      VOLTAGE REFERENCE CHART

      CVT device Ground Voltage [V]
      Connector Terminal
      M78 8 Ground Battery voltage
      Fig 1: Checking Voltage Between CVT Device Harness Connector And Ground
      G05876372Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 3.

  3. CHECK CVT DEVICE POWER SUPPLY CIRCUIT
    1. Disconnect BCM harness connector.
    2. Check continuity between BCM harness connector M19 (A) terminal 84 and CVT device harness connector M78 (B) terminal 8.
      CONTINUITY REFERENCE CHART

      BCM CVT device Continuity
      Connector Terminal Connector Terminal
      A: M19 84 B: M78 8 Yes
    3. Check continuity between BCM harness connector M19 (A) terminal 84 and ground.
      CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      A: M19 84 Ground No
      Fig 2: Checking Continuity Between BCM Harness Connector M19 Terminal 84 And Ground
      G05876373Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair harness or connector.

  4. CHECK CVT DEVICE CIRCUIT
    1. Disconnect BCM harness connector.
    2. Check continuity between CVT device harness connector and BCM harness connector.
      CONTINUITY REFERENCE CHART

      BCM CVT device Continuity
      Connector Terminal Connector Terminal
      A: M19 87 B: M78 9 Yes
    3. Check continuity between CVT device harness connector and ground.
      CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      A: M19 87 Ground No
      Fig 3: Checking Continuity Between CVT Device Harness Connector And Ground
      G05876374Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: Repair harness or connector.

  5. CHECK CVT DEVICE

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Replace CVT device. Refer to "REMOVAL AND INSTALLATION ".

  6. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    Inspection End.

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