P0230 OBD II Trouble Code Fuel Pump Primary (Control) Circuit Malfunction

Detailed information on troubleshooting and repairing a P0230 DTC code which has to do with a fuel pump primary circuit malfunction. Also includes links to relevant forum topics on the code.

Symptoms of P0230 OBD II Trouble Code

  • MIL (malfunction indicator lamp) illumination
  • No start condition
  • No fuel pump operation
  • Fuel pump runs all the time with ignition on

Common Causes of P0230 OBD II Trouble Code

  • Short to ground on control circuit
  • Fuel pump control circuit open
  • Short to battery voltage on control circuit
  • Harness chafing causing one of above conditions
  • Bad relay
  • Bad PCM