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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 P0462: Fuel Level Sensor Low 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 0-1 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 less than 0.13 volt, go to next step. If reading is greater than 0.13 volt, go to step  6.
  5. Check for an open fuel level sensor input circuit. If an open is found, go to step  7. If an open does not exist, go to next step.
  6. Using DVOM connected to ground, backprobe fuel level sensor output terminal of fuel level sensor. If reading is greater than 2.9 volts, go to step  9. If reading is less than 2.9 volts, go to step  10.
  7. Repair open in fuel level sensor input circuit. Go to step  11.
  8. Repair open in fuel level sensor output circuit. Go to step  11.
  9. Repair short to voltage in fuel level output circuit. Go to step  11.
  10. Replace and reprogram PCM using required equipment. See PROGRAMMING . Go to next step.
  11. 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 P0462. 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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