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P0230 - Fuel Pump Primary Circuit Malfunction

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.
Possible 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 BUICK Fuel Pump Relay Control Circuit
P0230 CADILLAC Fuel Pump Relay Control Circuit
P0230 CHEVROLET Fuel Pump Relay Control Circuit
P0230 FORD The ECM Has Detected A Fault In The Fuel Pump Circuit
P0230 GMC Fuel Pump Relay Control Circuit
P0230 HYUNDAI Fuel Pump Primary Circuit
P0230 ISUZU Fuel Pump Relay Control Circuit
P0230 KIA Fuel Pump Primary Circuit
P0230 LEXUS Fuel Pump Primary Circuit
P0230 MAZDA Open Or Short Circuit In The Fuel Pump Primary Circuit
P0230 MERCEDES-BENZ Fuel Pump Primary Circuit Malfunction
P0230 PONTIAC Fuel Pump Relay Control Circuit
P0230 SATURN Fuel Pump Relay Control Circuit
P0230 SUBARU Fuel Pump Primary Circuit
P0230 TOYOTA Fuel Pump Primary Circuit Fault
P0230 VOLKSWAGEN Fuel Pump Primary Circuit
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