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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1464: Fuel Level Sensor >> Diagnostic Procedure >> 2. Check Fuel Level Sensor Ground Circuit For Open And Short
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2. Check Fuel Level Sensor Ground Circuit For Open And Short

  1. Disconnect ECM harness connector.
  2. Disconnect combination meter harness connector.
  3. Check harness continuity between ECM terminal 107 and combination meter terminal 29. 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 4.

NG: GO TO 3.