Possible causes

– Blown Fuel Pump fuse
– Open Fuel Pump Monitor Circuit
– Faulty Fuel Pump Relay
– Damaged ECM

When is the code detected?

The code will be set if an incorrect voltage on the control circuit of the fuel pump relay is detected by the ECM.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0230 Description

The Engine Control Module (ECM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump. The ECM enables the fuel pump relay as long as the engine is cranking or running, and crankshaft reference pulses are received. If no crankshaft reference pulses are received, the ECM de-energizes the fuel pump relay after 2 seconds. The ECM monitors the voltage on the fuel pump relay control circuit.

P0230 Information for specific makes

P0230 LEXUS
P0230 FORD
P0230 BUICK
P0230 HYUNDAI
P0230 ISUZU
P0230 KIA
P0230 SUBARU
P0230 MAZDA
P0230 VOLKSWAGEN
P0230 TOYOTA
P0230 CADILLAC
P0230 CHEVROLET
P0230 GMC
P0230 PONTIAC
P0230 SATURN