Code Definition

P023F — Fuel pump power circuit open

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

About P023F

P023F 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 P023F is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

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 P023F 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 P023F fault code is set when the Engine Control Module (ECM) detects an open circuit in the power supply to the fuel pump. An open circuit condition means there is a break or disconnection in the wiring or connectors that provide electrical power to the fuel pump. This prevents the fuel pump from receiving the necessary power to operate, potentially leading to fuel delivery issues which can affect engine performance.

Quick Facts