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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 Input Signal 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 for continuity between the inverter unit harness connector and AC 120 V outlet main switch harness connector.
      Inverter unit AC 120 V outlet main switch Continuity
      Connector Terminal Connector Terminal
      M143 6 M144 3 Existed
    4. Check for continuity between inverter unit harness connector and ground.
      Inverter unit Ground Continuity
      Connector Terminal
      M143 6 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 INPUT SIGNAL
    1. Connect inverter unit connector and AC 120 V outlet main switch connector.
    2. Turn ignition switch ON.
    3. AC 120 V outlet main switch ON.
    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 6 OFF 0 V
      ON 12 V

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: GO TO 3.

  3. CHECK AC 120 V OUTLET MAIN SWITCH
    1. Turn ignition switch OFF.
    2. Remove AC 120 V outlet main switch.
    3. Check AC 120 V outlet main switch. Refer to "COMPONENT INSPECTION ".

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace AC 120 V outlet main switch.

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