AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Mercury - P023F Mercury

P023F Mercury Code - Fuel Pump Secondary Circuit/Open

- Code Popularity: 1,104 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P023F Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Blown Fuel Pump fuse
  • Open Fuel Pump Monitor Circuit
  • Faulty Fuel Pump Relay
  • Damaged Engine Control Module (ECM)
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC P023F Mercury?

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

Search for P023F Mercury Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P023F Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P023F Mercury 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 Mercury - Fuel Pump Secondary Circuit/Open - AutoCodes.com
P023F Mercury Code - Fuel Pump Secondary Circuit/Open

Need More Information on the Code?

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

Need Help with the Code?

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

Code P023F Mercury comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P023F Mercury code? Have you replaced any parts?
Any information is appreciated. Thanks