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Home >> Isuzu >> 2000 >> Rodeo LS, 2.2 D >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.2L >> Diagnostic Trouble Code Identification >> DTC P0463: Fuel Level Sensor High Input >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform On-Board Diagnostic II (OBD-II) system check. See SELF-DIAGNOSTICS - INTRODUCTION article. Go to next step.
  2. Turn ignition on. Observe fuel level reading on scan tool. If reading displayed is 99-100 percent, go to step  4. If scan tool does not indicate specified amount, go to next step.
  3. Test fuel gauge operation. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
  4. Turn ignition off. Using DVOM, backprobe fuel level sensor input circuit at fuel level sensor connector. If reading is greater than 2.9 volts, go to next step. If reading is less than 2.9 volts, go to step  6.
  5. Check for a short to voltage in fuel level input circuit. If a short to voltage is found, go to step  7. If a short to voltage does not exist, go to next step.
  6. Check for open in fuel level output circuit. If an open circuit is found, go to step  8. If no problem was found, go to step  9.
  7. Locate and repair short to voltage in fuel level sensor input circuit. Go to step  10.
  8. Repair open in fuel level output circuit. Go to step  10.
  9. Replace and reprogram PCM using required equipment. See PROGRAMMING . Go to next step.
  10. Using scan tool, select DTC and clear DTC information. Start engine and idle to normal operating temperature. Select specified DTC INFO for DTC set. Operate vehicle within the conditions for setting DTC P0463. If scan tool indicates diagnostic RAN AND PASSED, system is okay. If DTC does not indicate system RAN AND PASSED, go back to step  2.
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