P0230 OBD-II Trouble Code: Fuel Pump Primary Circuit Malfunction

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0230 code

P0230 is a diagnostic trouble code (DTC) for "Fuel Pump Primary Circuit Malfunction". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0230 DIAGNOSTIC Get a fair and transparent estimate upfront

P0230 code definition

Fuel Pump Primary Circuit Malfunction

What the P0230 code means

P0230 is a generic OBD-II code which indicates that the fuel pump primary circuit has a malfunction of the vehicle power to the fuel pump when it is commanded on or off

What causes the P0230 code?

  • The engine control module (ECM) detects the primary fuel pump circuit voltage as below specifications from the fuel pump relay to the ECM

  • The fuel pump relay main power supply could be low from a blown fuel pump fuse or fusible link, or from a shorted fuel pump or circuit

What are the symptoms of the P0230 code?

  • The Check Engine Light will be illuminated

  • The fuel pump may become inoperative if the fuel pump and relay is bad

  • The engine may not start from a lack of fuel pump operation

How does a mechanic diagnose the P0230 code?

  • Scans codes and documents the freeze frame data in order to verify the problem

  • Clears the DTC codes to verify whether the concern comes back

  • Checks the fuel pump fuse or fusible link to see if it is blown

  • Tests voltage to the fuel pump relay primary circuit to be battery voltage

  • Tests fuel pump relay primary circuit resistance for an open circuit

Common mistakes when diagnosing the P0230 code

Follow these simple guidelines to prevent misdiagnosis:

  • Verify that the battery voltage is within specifications and connections are good

  • Check the electrical connections at the fuel pump relay for overheating from a fuel pump drawing too much power and overheating the circuit

How serious is the P0230 code?

  • The fuel pump primary circuit powers the fuel pump relay and can cause a no start

  • A low battery voltage can trigger the code if the voltage falls below a specified level

  • The fuel pump may be drawing too much power and cause the low voltage condition

What repairs can fix the P0230 code?

Additional comments for consideration regarding the P0230 code

Code P0230 is triggered by low voltage in the main power circuit of the fuel pump relay. The ECM monitors this voltage to see if it falls below a specified voltage.

If codes P0231 or P0232 are present, then follow the pinpoint tests for these codes first to narrow down the failure on the secondary side of the fuel pump circuit.

Need help with a P0230 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
P0230
trouble codes

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0230 code.

SCHEDULE P0230 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(6,295)

Rating Summary
5,825
224
52
35
159
5,825
224
52
35
159

JOHNNY

33 years of experience
96 reviews
JOHNNY
33 years of experience
BMW 325Ci - Check Engine Light is on - Sacramento, California
He was great explained everything to me and have now booked him for another appointment. Thanks johnny.

Ronald

41 years of experience
93 reviews
Ronald
41 years of experience
Mercedes-Benz C300 - Check Engine Light is on - Spring, Texas
Mister Ron was very nice and took time out to explain any concerns I might have about my car. He also made sure he communicated with me when he was on his way, once he was outside, and when we was done working on my car. I appreciate that considering I have a newborn that I had to look after.

Ronald

41 years of experience
93 reviews
Ronald
41 years of experience
Ram 1500 - Check Engine Light is on - Spring, Texas
Extremely satisfied with the service, he was able to come out and diagnose almost immediately. We purchased the parts, he came back installed them and been running great since. Would definitely recommend him and will not hesitate to call again if needed.

Scott

36 years of experience
802 reviews
Scott
36 years of experience
Dodge Neon - Check Engine Light is on - Tempe, Arizona
I truly enjoy Scott as he has done work for me in the past. Scott is very friendly, knowledgeable, and a true professional! I highly recommend him.


More related articles

P2776 OBD-II Trouble Code: Upshift Switch Circuit Low
P2776 means a problem signal was detected from the upshift switch circuit usually due to electrical issues or liquid being spilled on the switch.
P0217 OBD-II Trouble Code: Engine Overheat Condition
P0217 P0217 code definition Engine Overheating Condition What the P0217 code means The P0217 code means that the engine is or was overheating and should be turned off as soon as possible. Most engines have an engine coolant temperature...
P2179 OBD-II Trouble Code: System Too Lean Off Idle Bank 2
P2179 P2179 code definition System Too Lean Off Idle Bank 2 What the P2179 code means This code indicates that there is a lean air fuel mixture on bank 2 of the engine. Bank 2 refers to the set of...

Related questions

Multiple problems with the car I just purchased

Hi there. I am so sorry that this has happened to you. The Check Engine Light bulb needs to be replaced so that you know when the system sees a problem; you didn't know that you would fail the emissions...

Check Engine light came on

An illuminated Check Engine Light can be caused by many different issues on a vehicle that is 15 years old; it could be anything from a gas cap, to a bad sensor. I recommend hiring a mechanic, such as one...

Where's vehicle speed sensor B ?

Hello, thanks for writing in about your Hyundai Azera. There isn't a certain answer for the sensor B. Here is the basic diagnostic route of trouble code P2159 to help you better understand the issue. If you'd like assistance with...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com