Fuel and air

P0230 Fault in the fuel pump power supply

By: Diagno editorial team · Updated: 2026-10-15

P0230 means: Fault in the fuel pump power supply. The engine computer can't control the fuel pump properly. Drive gently and have the car checked soon. The repair usually costs about €60–600 in Estonia. The most common cause: fuel pump relay or fuse. Other possible causes: wire or connector, fuel pump has failed.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.

Typical repair cost€60–600parts and labour in Estonia

What it means

The engine computer can't control the fuel pump properly. The car may cut out while driving or not start at all.

What could be wrong

1Fuel pump relay or fuse
2Wire or connector
3Fuel pump has failed
4Fuel pump control module

What you can check yourself

Switch the ignition on and listen for the pump humming near the tank. Check the fuse. You can check the simple things yourself, but the repair is best done in a workshop.

How we fix it

We check the pump power supply and relay
We repair the wiring
We replace the pump or control module

Standard SAE description: Fuel Pump Primary Circuit Malfunction

Check the fuse · If a light, the horn, wipers, a socket or the fuel pump is dead, a blown fuse may be the cause.Fuse boxes by car →

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

Book a diagnostic check

Questions

What does fault code P0230 mean?

Fault in the fuel pump power supply. The engine computer can't control the fuel pump properly. The car may cut out while driving or not start at all.

Can I drive with code P0230?

Drive gently and have the car checked soon.

How much does it cost to fix P0230?

Roughly €60–600 in Estonia. The price depends on exactly what has failed and on the car.

How is P0230 fixed?

We check the pump power supply and relay. We repair the wiring. We replace the pump or control module.

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.