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DTC P0460: Fuel Level Unit No Change Over Miles: Testing

  1. Turn ignition on, with engine off. Using scan tool, read and record FUEL LEVEL SENSOR voltage. If voltage is less than .4 volt, perform DTC P0462: FUEL LEVEL SENDING UNIT VOLTS TOO LOW  test. If voltage is .4 volt or more, go to next step.
  2. Ensure ignition is on, with engine off. Using scan tool, read and record FUEL LEVEL SENSOR voltage. If voltage is more than 9.4 volts, perform DTC P0463: FUEL LEVEL SENDING UNIT VOLTS TOO HIGH  test. If voltage is 9.4 volts or less, go to next step.
  3. Turn ignition off. Add 5 gallons of fuel to fuel tank. Turn ignition on, with engine off. Using scan tool, read FUEL LEVEL SENSOR voltage. If voltage decreased at least .2 volt, go to next step. If voltage did not decrease at least .2 volt, replace fuel level sensor. Fuel level sensor is located on fuel pump module in top of fuel tank. See FUEL LEVEL SENSOR under FUEL SYSTEMS in REMOVAL, OVERHAUL & INSTALLATION article.
  4. Turn ignition off. Visually inspect related connectors and wiring harness for damage. Repair connectors and wiring harness as necessary. If connectors and wiring harness are okay, no problem is indicated at this time. Test is complete.
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