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P04C0

Fuel Fill Door Unlock Control Range or Performance

Fuel Fill Door Unlock Control Range or Performance: the component is electrically intact but its response does not match the command.

  • Check engine light: Not always
  • Emissions related: No
  • Repair difficulty: easy

Common causes

Ordered by how often each turns out to be the cause.

  • Actuator slow or wornCommon

Parts involved

  • Fuel Fill Door Unlock Actuator
  • Fuel Fill Door Lock Position Sensor

P04C0 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.