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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> DTC P0462, P0463: Fuel Level Sensor >> Diagnostic Procedure >> 2. Check Fuel Level Sensor Power Supply Circuit
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

2. Check Fuel Level Sensor Power Supply Circuit

  1. Disconnect "fuel level sensor unit and fuel pump" harness connector.
  2. Turn ignition switch ON.
  3. Check voltage between "fuel level sensor unit and fuel pump" terminal 5 and ground with CONSULT-II or tester.
    1. Voltage: Battery voltage 
Fig 1: Checking voltage between "fuel level sensor unit & fuel pump" terminal 5 & ground
G00761038Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : GO TO 4.

NG : GO TO 3.