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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0462 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the fuel level sensor.
  2. Ignition ON, verify that the scan tool Fuel Tank Level Remaining parameter or the Fuel Level Sensor parameter is less than 4 percent.
    • If greater than 4 percent, test the signal circuit for a short to ground. If the circuit tests normal, replace the ECM/PCM.
  3. If all circuits test normal, test or replace the fuel level sensor.
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