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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - DTC P0443 To DTC P3452 And Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> Proactive Alert Identifier ECF001 >> Circuit/System Verification

Circuit/System Verification

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  1. Remove the component: Fuel Tank Fuel Pump Module
  2. Inspect for the following conditions:
    • Contaminated or poor quality fuel.
    • Contamination of the fuel pump fuel strainer.
    • Inspect the electrical connectors and the ground circuits of the component for poor connections.
    • If a condition exists - Repair or replace as necessary
    • If no condition exists
  3. Replace the component: G12 Fuel Pump
  4. Clear All Vehicle DTCs
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