Possible Cause
WARNING: This page is about a different car, the 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
DTC P0230
- Open or shorted fuel pump circuit.
- Damaged fuel pump relay.
- Damaged PCM.
- Open VPWR circuit to fuel pump relay.
DTC P0231
- Open in B+ circuit to fuel pump relay.
- Fuel pump relay contacts open.
- Open in FP PWR circuit between fuel pump relay and connection to FPM circuit.
- Damaged fuel pump relay.
- Damaged PCM (engine will start).
DTC P0232 (No Start)
- Inertia Fuel Shutoff (IFS) switch not reset or electrically open.
- Open circuit between fuel pump and FPM circuit connection to FP PWR circuit.
- Poor fuel pump ground.
- Fuel pump electrically open.
DTC P0232 (Engine Starts)
- Fuel pump secondary circuit short to power.
- Fuel pump relay contacts always closed.
- Open in FPM circuit between PCM connection to FP PWR circuit.
- Damaged PCM.