P1239: Speed Fuel Pump Positive Feed Fault

MediumPowertrainFuel System

What does P1239 mean?

P1239 is a diagnostic trouble code indicating "Speed Fuel Pump Positive Feed Fault". This code relates to your vehicle's fuel system and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty fuel system component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

Get a diagnosis for YOUR car

Code P1239 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P1238Fuel Pump Secondary Circuit Malfunction
P1237Fuel Pump Secondary Circuit Malfunction
P1236Fuel Pump Control Out Of Range
P1235Fuel Pump Control Out Of Range