Code Definition

P0230 — Fuel Pump Primary Circuit Malfunction

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0230

P0230 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0230 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0230 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0230 fault code is set when the Engine Control Module (ECM) detects a malfunction within the primary circuit of the fuel pump. The primary circuit typically refers to the electrical components and wiring that control the operation of the fuel pump. The fuel pump is responsible for supplying fuel from the tank to the engine under the required pressure. A malfunction in the primary circuit can lead to issues with fuel delivery, potentially causing engine performance problems such as stalling, hesitation, or difficulty starting. Causes for this fault code can include a faulty fuel pump relay...

Join TaT to view the complete code information and diagnostic details.

Quick Facts