DTC P0230: Fuel Pump Control Circuit: Description

PCM provides ignition positive voltage to coil side of fuel pump relay. When ignition switch is first turned on, PCM energizes fuel pump relay, which applies power to fuel pump. PCM enables fuel pump relay as long as engine is cranking or running, and crankshaft reference pulses are received. If no crankshaft reference pulses are received, PCM de-energizes fuel pump relay after 2 seconds. PCM monitors voltage on fuel pump relay control circuit. DTC will set if PCM detects an incorrect voltage on fuel pump relay control circuit.