General Information

P0231 Fuel Pump Secondary Circuit Low

General Information

Component Location





General Description

The main relay supplies power to one side of the fuel pump relay coil. The other side of the fuel pump relay coil is ECM/PCM controlled. When the ignition switch is turned ON, the ECM/PCM energizes the fuel pump relay. The ECM/PCM monitors the fuel pump relay control circuit for malfunctions.

DTC Description

If there is a short circuit in the fuel pump circuit, P0231 is set.

DTC Detecting Condition





Specification





Schematic Diagram