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P04B5 Powertrain

Fuel Fill Door Stuck Open

On vehicles with a motorised fuel fill door (no manual lever) the actuator and position switch report that the door is mechanically stuck open. The motor cannot retract it, typically due to a frozen or dirty hinge, broken cable, or jammed actuator.

Affected components

  • Fuel fill door
  • Fuel fill door actuator

Common causes

  • High likelihood: Hinge jammed by ice, dirt or debris
  • Medium likelihood: Actuator linkage or motor broken
  • Low likelihood: Carbon or debris buildup preventing free movement

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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