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Home >> Suzuki >> 2002 >> XL-7 Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0464: Fuel Level Sensor Circuit - Intermittent Problem >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

WARNING: This page is about a different car, the 2003 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
  1. If engine system check has been performed, go to next step. If engine system check has not been performed, go to A4: ENGINE SYSTEM CHECK  under SYSTEM TESTS.
  2. Check fuel level sensor components, wiring and harness connectors for intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. If intermittent problem is found, repair as necessary. After repair, repeat DTC CONFIRMATION TEST . If no problem is found, go to next step.
  3. Turn ignition off. Disconnect fuel tank level sensor 12-pin in-line harness connector. See Figure. Check for poor terminal contact at fuel level sensor in-line harness connector. If problem is found, repair as necessary. After repair, repeat DTC CONFIRMATION TEST . If terminal contact is okay, leave harness connector disconnected and go to next step.
  4. Using DVOM, measure resistance between component side of fuel tank level sensor harness connector terminals No. 3 (Black/Yellow wire) and No. 4 (Blue/White wire). See Figure. Resistance readings should be as follows:
    • Empty: 119-121 Ohms
    • Full: 2-4 Ohms
    If resistance is as specified, go to next step. If resistance is not as specified, replace fuel level sensor. After repair, repeat DTC CONFIRMATION TEST .
  5. Substitute a known-good ECM, and repeat DTC CONFIRMATION TEST . If DTC does not reset, testing is complete.
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