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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Power Control System) >> [Power Distribution System] >> DTC/Circuit Diagnosis >> Power Switch >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SWITCH (PUSH SWITCH) OUTPUT SIGNAL 1
    1. Turn power switch OFF.
    2. Disconnect power switch connector and IPDM E/R connector.
    3. Check voltage between power switch harness connector and ground.
      TERMINALS VOLTAGE REFERENCE CHART

      (+) (-) Voltage (V) (Approx.)
      Power switch
      Connector Terminal
      M25 8 Ground 9 - 16

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK POWER SWITCH (PUSH SWITCH) CIRCUIT 1
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and power switch harness connector.
      TERMINALS CONTINUITY REFERENCE CHART

      BCM Power switch Continuity
      Connector Terminal Connector Terminal
      M70 76 M25 8 Existed
    3. Check continuity between BCM harness connector and ground.
      TERMINALS CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      M70 76 Not existed

      Is the inspection result normal? 

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

      NO: Repair or replace harness.

  3. CHECK POWER SWITCH (PUSH SWITCH) OUTPUT SIGNAL 2

    Check voltage between IPDM E/R harness connector and ground.

    TERMINALS VOLTAGE REFERENCE CHART

    (+) (-) Voltage (V) (Approx.)
    IPDM E/R
    Connector Terminal
    E17 66 Ground 9 - 16

    Is the inspection result normal? 

    YES: GO TO  5.

    NO: GO TO 4.

  4. CHECK POWER SWITCH (PUSH SWITCH) CIRCUIT 2
    1. Disconnect BCM connector.
    2. Check continuity between IPDM E/R harness connector and power switch harness connector.
      TERMINALS CONTINUITY REFERENCE CHART

      IPDM E/R Power switch Continuity
      Connector Terminal Connector Terminal
      E17 66 M25 8 Existed
    3. Check continuity between IPDM E/R harness connector and ground.
      TERMINALS CONTINUITY REFERENCE CHART

      IPDM E/R Ground Continuity
      Connector Terminal
      E17 66 Not existed

      Is the inspection result normal? 

      YES: Replace IPDM E/R.

      NO: Repair or replace harness.

  5. CHECK POWER SWITCH (PUSH SWITCH) GROUND CIRCUIT

    Check continuity between power switch harness connector and ground.

    TERMINALS CONTINUITY REFERENCE CHART

    Power switch Ground Continuity
    Connector Terminal
    M25 4 Existed

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Repair or replace harness.

  6. CHECK POWER SWITCH (PUSH SWITCH)

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 7.

    NO: Replace power switch.

  7. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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