AutoCodes – Ford – P023F Ford

P023F Ford Code - Fuel Pump Secondary Circuit/Open

Quick Answer

The Engine Control Module (ECM) provides ignition positive voltage to the coil side of the fuel pump relay. Common causes include Blown Fuel Pump fuse, Open Fuel Pump Monitor Circuit, Faulty Fuel Pump Relay. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P023F Ford indicates Fuel Pump Secondary Circuit/Open.
Common causes: Common causes include Blown Fuel Pump fuse, Open Fuel Pump Monitor Circuit, Faulty Fuel Pump Relay.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,820

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 13, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P023F Ford 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.

OBDII Code P023F Ford - Fuel Pump Secondary Circuit/Open - AutoCodes.com — P023F Ford Code - Fuel Pump Secondary Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P023F Ford?

Blown Fuel Pump fuse
Open Fuel Pump Monitor Circuit
Faulty Fuel Pump Relay
Damaged Engine Control Module (ECM)

How to Fix the DTC P023F Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P023F Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P023F Ford code?

Need more information on how to fix the P023F Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P023F Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P023F Ford Code

What does the OBDII code P023F mean for a Ford vehicle?

P023F indicates a problem with the fuel pump secondary circuit, suggesting that the circuit is open or has a fault, preventing the fuel pump from functioning properly.

What are the common symptoms associated with the P023F code?

Common symptoms include a rough idle, engine stalling, difficulty starting, reduced engine performance, and in some cases, the check engine light may illuminate.

What could cause the P023F code to appear in a Ford vehicle?

Causes may include a faulty fuel pump, damaged wiring or connectors in the fuel pump circuit, issues with the fuel pump relay, or a malfunctioning engine control module (ECM).

How can I diagnose the issue related to the P023F code?

Start by visually inspecting the wiring and connectors for damage, check the fuel pump relay for proper operation, and use a multimeter to test the voltage and resistance in the fuel pump circuit.

What repairs are commonly required to fix the P023F code?

Repairs may include replacing a faulty fuel pump, repairing or replacing damaged wiring or connectors, replacing a malfunctioning fuel pump relay, or reprogramming or replacing the ECM if necessary.

Can the P023F code cause my vehicle to not start?

Yes, the P023F code can lead to issues with fuel delivery, which may result in the engine not starting or stalling while driving.

Is it safe to drive a vehicle with the P023F code?

While it may be possible to drive the vehicle, it is not recommended as the fuel system may be compromised, leading to engine performance issues and potential stalling.

How can I reset the P023F code after repairs?

You can reset the P023F code by using an OBDII scanner to clear the trouble codes or disconnecting the vehicleâ€™s battery for a few minutes, but ensure the underlying issue is resolved first.

What should I do if the P023F code returns after repairs?

If the code reappears, further diagnosis may be necessary to check for additional issues, such as intermittent wiring problems, or to verify that the replacement parts were installed correctly and are functioning as intended.