P0230: Fuel pump primary circuit

The computer sees a fault in the control circuit of the fuel pump relay. The driver may notice a no-start or an engine that cuts out.

Likely causes, most common first

  • Faulty fuel pump relay
  • Blown fuse
  • Damaged wiring or connector
  • Faulty fuel pump control module

Parts usually involved

  • Fuel pump relay
  • Fuse
  • Fuel pump
  • Sensor connector

Test before you replace

Check the fuse and relay, then test power and the control signal at the pump circuit.

General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.

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