P0230
Fuel Pump Primary Circuit Malfunction
1999-2000 BMW 323i E46 2.5L I6 🇬🇧
High SeverityPowertrain
Description
Malfunction in the fuel pump primary (relay/power supply) circuit.
Symptoms
- Check Engine Light
- No start condition
- Engine stalling
- Intermittent power loss
Common Causes
- Faulty fuel pump relay
- Wiring damage
- Fuel pump failure
- Blown fuse
- Inertia switch tripped
Diagnostic Steps
- Check fuel pump fuse
- Test fuel pump relay
- Listen for fuel pump prime
- Test voltage at fuel pump connector
- Check inertia switch (Ford)
Repair Notes
Check fuse and relay first. Replace fuel pump if no voltage issue found.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0230 on Other Vehicles
Common Questions
What does code P0230 mean on a 1999-2000 BMW 323i E46?
P0230 stands for "Fuel Pump Primary Circuit Malfunction". Malfunction in the fuel pump primary (relay/power supply) circuit.
What are the symptoms of P0230 on a BMW 323i E46?
Common symptoms of P0230 include: Check Engine Light, No start condition, Engine stalling, Intermittent power loss.
What causes P0230 on a 1999-2000 BMW 323i E46?
Common causes of P0230 include: Faulty fuel pump relay, Wiring damage, Fuel pump failure, Blown fuse, Inertia switch tripped.