FixVault

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 is less than 4 percent.
    • If greater than the specified range, test the signal circuit terminal C for a short to ground. If the circuit tests normal, replace the ECM.
  3. If all circuits test normal, test or replace the fuel level sensor.