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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R Spec V >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 406 (Engine Controls - System & Component Testing) >> Fuel Pump Circuit >> Diagnostic Procedure >> 11. Check Fuel Pump Power Supply And Ground Circuit For Open And Short
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11. Check Fuel Pump Power Supply And Ground Circuit For Open And Short

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch OFF.
  2. Disconnect "fuel level sensor unit and fuel pump" harness connector.
  3. Check harness continuity between "fuel level sensor unit and fuel pump" terminal 1 and harness connector B1 terminal 15, "fuel level sensor unit and fuel pump" terminal 3 and ground. Refer to Wiring Diagram.
    1. Continuity should exist. 
  4. Also check harness for short to ground and short to power.

OK or NG 

  1. OK : GO TO 12.
  2. NG : Repair open circuit or short to power in harness or connectors.
Fig 1: Disconnect "Fuel Level Sensor Unit And Fuel Pump" Harness Connector
G00875131Courtesy of NISSAN MOTOR CO., U.S.A.
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