P0230 — Fuel Pump Primary Circuit Malfunction
Category: Powertrain Severity: High
Updated:
DTC code P0230 means: Fuel Pump Primary Circuit Malfunction. It falls under the "Powertrain" category, with an estimated severity of High. Common causes include failed fuel pump relay, blown fuse and damaged pump wiring or connector; it's worth confirming the diagnosis before replacing parts.
Possible causes
- Failed fuel pump relay
- Blown fuse
- Damaged pump wiring or connector
- Fuel pump drawing excessive current
Symptoms
- Engine won't start
- Engine stalls while driving
- No pump hum when switching the ignition on
How to diagnose it step by step
- Listen for the pump at key-on.
- Check fuse and relay.
- Measure voltage at the pump connector.
- Check the pump ground.
- Replace the relay or pump.
How to fix it
Check the pump fuse and relay (you can swap the relay with an identical one). If 12 V reaches the pump and it doesn't run, the pump has failed.
Estimated repair cost
Relay: $10–50. Fuel pump: $300–800 installed.
Frequently asked questions
What does DTC code P0230 mean?
Fuel Pump Primary Circuit Malfunction.
Is code P0230 serious?
Severity High. Have it checked as soon as possible, especially if it affects safety or the catalytic converter.
Can I keep driving with code P0230?
Not reliable: the engine can stall at any moment.
Related codes
P0234 P0223 P0222 P0221 P0220 P0219 P0217 P0200 P0299
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