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Home >> Infiniti >> 2012 >> QX56 RWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Power Outlet (Ac 120 V Outlet) >> DTC/Circuit Diagnosis >> Ac 120 V Outlet Main Switch Indicator Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK HARNESS BETWEEN INVERTER UNIT AND AC 120 V OUTLET MAIN SWITCH
    1. Turn ignition switch OFF.
    2. Disconnect inverter unit connector and AC 120 V outlet main switch connector.
    3. Check continuity between inverter unit harness connector and AC 120 V main switch harness connector.
      Inverter unit AC 120 V outlet main switch Continuity
      Connector Terminal Connector Terminal
      M143 7 M144 5 Existed
    4. Check continuity between inverter unit harness connector and ground.
      Inverter unit Ground Continuity
      Connector Terminal
      M143 7 Not existed

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair the harnesses or connectors.

  2. CHECK AC 120 V OUTLET MAIN SWITCH GROUND CIRCUIT

    Check continuity between AC 120 V outlet main switch harness connector and ground.

    AC 120 V outlet main switch Ground Continuity
    Connector Terminal
    M144 6 Existed

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Repair the harnesses or connectors.

  3. CHECK AC 120 V OUTLET MAIN SWITCH INDICATOR OUTPUT SIGNAL
    1. Connect AC 120 V outlet main switch connector and inverter unit connector.
    2. Turn ignition switch ON.
    3. AC 120 V outlet main switch ON. (AC 120 V output is normal)
    4. Check for voltage between the inverter unit harness connector and ground.
      Terminals Condition Voltage (Approx.)
      (+) (-)
      Inverter unit Ground AC 120 V outlet main switch
      Connector Terminal
      M143 7 OFF 0 V
      ON 5.2 V

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Replace inverter unit.

  4. CHECK AC 120 V OUTLET MAIN SWITCH INDICATOR
    1. AC 120 V outlet main switch ON. (AC 120 V output is normal)
    2. Check that AC 120 V outlet main switch indicator is illuminated.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace AC 120 V outlet main switch.