DTC P0230: Fuel Pump Circuit Malfunction: Description

Fig 1: Locating Fuel Pump & Fuel Pump Relay

Courtesy of HYUNDAI MOTOR CO.

The ECM provides ground to one side of the coil in the fuel pump relay to control the fuel pump relay. The other side of the fuel pump relay coil is connected to main relay, which activates when the ignition switch is ON. The ECM monitors the control circuit between the fuel pump relay and the ECM. When the ignition switch is turned ON, the ECM energizes the fuel pump relay, which sends power to the fuel pump.