Fault code P1230 – a step-by-step guide to diagnosing and fixing it

Error code P1230 is displayed and the check engine light is on - what does this mean?

The DTC P1230 is a manufacturer-specific fault code that is recognized by the OBD-II diagnostics and indicates a problem with the fuel pump system. This trouble code mainly occurs in Ford vehicles and indicates a failure or malfunction of the fuel pump or its control circuit.

What can cause this fault code?

• Defective fuel pump
• Damaged fuel pump relay
• Interrupted wiring to the fuel pump system
• Defective fuel pump fuse
• Faulty fuel pump control unit
• Loose or corroded plug connections
• Defective fuel pressure sensor
• Clogged fuel filter
• Damaged fuel tank pressure switch

What symptoms occur in parallel with fault code P1230?

• Starting problems: The vehicle is difficult or impossible to start
• Engine misfires: Irregular engine running while driving
• Loss of power: Reduced engine power during acceleration
• Engine stalls: Sudden stalling of the engine while driving
• Fuel smell: Perceptible fuel vapors inside the vehicle
• Unusual noises: Whirring or clicking noises from the fuel tank

How to fix the problem of fault code P1230?

• Repairing fault code P1230 requires a systematic diagnosis of the fuel pump system.
• Replace the fuel pump relay: Check the relay in the fuse box and replace it with a new original spare part if necessary
• Check and replace fuses: Check all fuel pump related fuses and replace blown fuses
• Repair wiring: Inspect all wiring to the fuel pump system for damage and repair or replace any faulty wiring
• Replace fuel pump: If the pump is defective, it must be replaced completely, which usually requires removing the fuel tank
• Clean plug connections: Disconnect and clean all electrical connections to the fuel pump system with contact spray
• Replace fuel filter: Replace a clogged fuel filter that may have overloaded the pump