P0231 1998 Ford F150 Code - Fuel Pump Secondary Circuit Low
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
- P0231 1998 Ford F150 indicates Fuel Pump Secondary Circuit Low .
- 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.
Code P0231 1998 Ford F150 Description
What are the Possible Causes of the DTC P0231 1998 Ford F150?
- Blown Fuel Pump fuse
- Open Fuel Pump Monitor Circuit
- Faulty Fuel Pump Relay
- Damaged Engine Control Module (ECM)
How to Fix the DTC P0231 1998 Ford F150?
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.
Code Tech Notes
1. Disconnect the inertia switch harness connector
2. Turn key to ON position (Engine OFF)
3. Measure voltage of circuit between inertia switch harness connector and ground
4. If battery voltage is found, replaced Inertia Switch
5. Clear codes
For natural gas applications, the following description applies to the fuel shutoff valve monitor (FSVM) and the fuel shutoff valve power (FSV PWR) circuits.
The PCM monitors the fuel pump monitor (FPM) circuit. The test fails if the PCM commands the fuel pump ON and B+ voltage is not detected on the FPM circuit.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0231 1998 Ford F150 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.
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Frequently Asked Questions about P0231 1998 Ford F150 Code
1. What are the common symptoms of OBDII code P0231 in a 1998 Ford F150 related to the Fuel Pump Secondary Circuit Low?
- Common symptoms include engine stalling, difficulty starting the vehicle, loss of power while driving, and a malfunctioning fuel pump.
2. What are the possible causes of OBDII code P0231 in a 1998 Ford F150?
- The code P0231 on a 1998 Ford F150 could be triggered by a faulty fuel pump relay, a damaged fuel pump, wiring issues, or a problem with the fuel pump driver module.
3. How can I diagnose the cause of OBDII code P0231 in my 1998 Ford F150?
- To diagnose the issue, you can check the fuel pump relay, inspect the fuel pump for proper function, test the wiring for any shorts or breaks, and verify the fuel pump driver module is functioning correctly.
4. What are the repair options for fixing OBDII code P0231 in a 1998 Ford F150?
- Repair options include replacing the fuel pump relay, replacing the fuel pump if it is faulty, repairing any damaged wiring, or replacing the fuel pump driver module if needed.
5. Can a DIY enthusiast fix OBDII code P0231 in a 1998 Ford F150?
- Depending on your skill level and access to tools, a DIY enthusiast may be able to fix the issue by following repair guides or tutorials specific to the Ford F150 model.
6. Is it safe to continue driving with OBDII code P0231 in a 1998 Ford F150?
- It is not recommended to continue driving with code P0231 as it can lead to potential fuel delivery issues, engine stalling, and other safety concerns. It is best to address the problem promptly.
7. How much does it cost to repair OBDII code P0231 in a 1998 Ford F150?
- The cost of repairing code P0231 can vary depending on the exact cause of the issue, but it may range from around $200 to $800, including parts and labor.
8. Can a bad fuel filter cause OBDII code P0231 in a 1998 Ford F150?
- While a clogged fuel filter can restrict fuel flow and lead to fuel pump issues, a bad fuel filter itself is not a common cause of OBDII code P0231 specifically related to the fuel pump circuit.
9. Will resetting the OBDII code P0231 in a 1998 Ford F150 make the problem go away?
- Resetting the code may temporarily clear the check engine light, but it will not fix the underlying issue causing code P0231. It is important to diagnose and repair the root cause of the problem.
10. How long does it typically take to repair OBDII code P0231 in a 1998 Ford F150?
- The repair time can vary based on the specific cause of the issue and the expertise of the mechanic, but it may take anywhere from a few hours to a full day to address and fix code P0231.
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