Fault Code P0231
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0231
Fuel Pump Secondary Circuit Low
This code indicates a low voltage in the fuel pump secondary circuit. This can lead to insufficient fuel delivery to the engine, affecting performance or preventing starting.
Part Details
Part Name
Fuel Pump
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪600 - ₪2500
Engine Location
Fuel tank / Fuel rail
Symptoms
- Difficulty starting engine
- Engine sputtering or stalling
- Loss of power under load
- Check Engine Light on
Possible Causes
- 1Faulty fuel pump
- 2Damaged wiring or loose connector
- 3Faulty fuel pump relay
- 4Engine Control Unit (ECU) issue
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