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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System >> DTC P0461: Fuel Level Sensor >> Overall Function Check >> With CONSULT-II
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With CONSULT-II

NOTE: Start from step 10, if it is possible to confirm that the fuel cannot be drained by 30L (7-7/8 US gal, 6-5/8 lmp gal) in advance.
  1. Prepare a fuel container and a spare hose.
  2. Release fuel pressure from fuel line, refer to FUEL PRESSURE RELEASE .
  3. Remove the fuel feed hose on the fuel level sensor unit.
  4. Connect a spare fuel hose where the fuel feed hose was removed.
  5. Turn ignition switch OFF and wait at least 10 seconds then turn ON.
  6. Select "FUEL LEVEL SE" in "DATA MONITOR" mode with CONSULT-II.
    Fig 1: Scan Tool Display - Data Monitor
    G00796139Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Check "FUEL LEVEL SE" output voltage and note it.
  8. Select "FUEL PUMP" in "ACTIVE TEST" mode with CONSULT-II.
  9. Touch "ON" and drain fuel approximately 30 L (7-7/8 US gal, 6-5/8 lmp gal) and stop it.
  10. Check "FUEL LEVEL SE" output voltage and note it.
  11. Fill fuel into the fuel tank for 30 L (7-7/8 US gal, 6-5/8 lmp gal).
  12. Check "FUEL LEVEL SE" output voltage and note it.
  13. Confirm whether the voltage changes more than 0.03V during step 7 to 10 and 10 to 12.

    If NG, check the fuel level sensor, refer to FUEL LEVEL SENSOR SIGNAL INSPECTION .

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