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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> Water-in-Fuel Lamp Diagnosis >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    If contaminants are noticed in the fuel, a fuel system cleaning may be necessary. Refer to Contaminants-in-Fuel Diagnosis .

  1. Verify that DTCs P2264, or P2269 are not set.
    • Go to next step : If DTCs P2264, or P2269 are not set 
  2. Verify there is no water in the fuel.
    • Go to next step : If no water present in the fuel 
  3. Ignition ON.
  4. Verify the Water In Fuel lamp turns ON and OFF when commanded with a scan tool.
    • Go to next step : If the Water in Fuel lamp turns ON and OFF 
  5. All OK