LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0462, P0463: Fuel Level Sensor >> Diagnostic Procedure >> 4. Check Fuel Level Sensor Ground Circuit For Open And Short
April 5, 2026: LEMON Manuals is launched! Read the announcement.

4. Check Fuel Level Sensor Ground Circuit For Open And Short

  1. Turn ignition switch OFF.
  2. Disconnect combination meter harness connector.
  3. Check harness continuity between combination meter terminal 29 and "fuel level sensor unit and fuel pump" terminal 6.

    Refer to Wiring Diagram.

    1. Continuity should exist. 
  4. Also check harness for short to ground and short to power.

OK or NG 

OK : GO TO 6.

NG : GO TO 5.