Drivable short-term, but fix now to avoid damage.
This code means the engine computer detected higher-than-expected voltage in the secondary circuit that powers the fuel pump. This often points to a wiring fault, a stuck relay, or a problem in the pump driver that disrupts normal fuel pump operation. Common fixes include repairing or replacing wiring and connectors, swapping the fuel pump relay, or replacing the pump driver module.
$150 – $750
Varies by vehicle and root cause.
If the car runs normally, short trips are usually fine, but this fuel pump circuit fault can cause stalling or a no-start. Avoid long drives and have it checked soon to be safe.
Most repairs cost between $150 and $750. Wiring or relay repairs are at the lower end, while replacing the driver module or fuel pump is more expensive.
Yes. A fault in the fuel pump's power circuit can lead to stalling or a no-start, so it shouldn't be left unaddressed for long.
P0232 means the secondary fuel pump circuit voltage is too low, while P0233 means it's too high. Both point to a wiring, relay, or driver module problem, just in opposite directions on the voltage reading.