Diagnosis Procedure
WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS CONNECTOR
- Turn ignition switch OFF.
- Check combination meter and fuel level sensor unit terminals (meter-side and harness-side) for poor connection.
Is the inspection result normal?
YES: GO TO 2
NO: Repair or replace terminals or connectors.
- CHECK FUEL LEVEL SENSOR UNIT CIRCUIT
- Disconnect combination meter connector and fuel level sensor unit connector.
- Check continuity between combination meter harness connector (A) and fuel level sensor unit and fuel pump harness connector (B).
TERMINALS CONTINUITY REFERENCEA B Continuity Connector Terminal Connector Terminal M24 34 B42 2 Yes 3. Check continuity between combination meter harness connector (A) and ground.
Courtesy of NISSAN MOTOR CO., U.S.A.
TERMINALS CONTINUITY REFERENCEA Ground Continuity Connector Terminal M24 34 No Is the inspection result normal?
YES: GO TO 3
NO: Repair harness or connector.
- CHECK FUEL LEVEL SENSOR UNIT GROUND CIRCUIT
- Check continuity between combination meter harness connector (A) and fuel level sensor unit and fuel pump harness connector (B).TERMINALS CONTINUITY REFERENCE
A B Continuity Connector Terminal Connector Terminal M24 24 B42 5 Yes - Check continuity between combination meter harness connector (A) and ground.
Courtesy of NISSAN MOTOR CO., U.S.A.
TERMINALS CONTINUITY REFERENCEA Ground Continuity Connector Terminal M24 24 No Is the inspection result normal?
YES: GO TO 4
NO: Repair harness or connector.
- Check continuity between combination meter harness connector (A) and fuel level sensor unit and fuel pump harness connector (B).
- CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the internal components in the fuel tank.
Is the inspection result normal?
YES: Inspection End.
NO: Install the fuel level sensor unit properly.