P0230: Fuel Pump Primary Circuit Malfunction
The engine computer sees an electrical problem controlling the fuel pump.
Green, yellow, red: three ways P0230 can look
The same code can be a quick fix or a reason to pull over. Match your situation to the closest example.
Keep an eye on it
Starts and runs normally.
Schedule a repair
Long cranking or hesitation. Diagnose soon.
Stop and get help
Stalling or no-start. Don't drive; you could lose power in traffic.
Symptoms you might notice
- No-start
- Stalling
- Long cranking
Common causes, cheapest first
- Failed fuel pump relay
- Blown fuse
- Wiring problem
- Failing fuel pump
What you can check before calling
- Listen for the pump humming for two seconds when you turn the key
A code points to a system, not a part. Replacing parts based on the code alone is how people spend money without fixing the problem. Testing confirms the cause first.
Generic codes (second character 0) mean the same thing on every vehicle. Some manufacturers add their own details, so check service information for your exact vehicle.
Related codes
More fuel & air mixture codes
Look up another code
Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).
Questions
What does P0230 mean?
P0230 means "Fuel Pump Primary Circuit Malfunction". The engine computer sees an electrical problem controlling the fuel pump.
Can I drive with code P0230?
It depends on what the vehicle is doing. Green: Starts and runs normally. Yellow: Long cranking or hesitation. Diagnose soon. Red: Stalling or no-start. Don't drive; you could lose power in traffic.
What causes P0230?
The most common causes are: failed fuel pump relay; blown fuse; wiring problem.
Is P0230 a serious code?
It can be. Stalling or no-start. Don't drive; you could lose power in traffic.
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