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Home >> Chevrolet >> 2014 >> Express 1500 LS, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0462: Fuel Level Sensor 1 >> 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 display is less than 4 percent.
    • If greater than the specified range, test the signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the ECM.
    • Signal Terminal C (5.3L)
    • Signal terminal B (4.3L, 4.8L or 6.0L)
    • Signal Terminal B (6.6L Diesel)
  3. If all circuits test normal, test or replace the fuel level sensor.
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