Enhanced Testing

P0230 - Fuel Pump Primary Circuit






Function
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 fuel pump 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.

DTC Description
ECM sets DTC P0230 if the ECM detects the fuel pump relay control line is open or short to ground or battery line.

Detecting Condition





Wiring Schematic