AutoCodes – Ford – P1237 2007 Ford Fusion

P1237 2007 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

Quick Answer

Fuel Pump Driver Modules (FPDM) controls the voltage to the Fuel Pump in order to maintain proper fuel pressure over the full operating range of the engine. Common causes include Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) harness is open or shorted, Fuel Pump Driver Module (FPDM) circuit poor electrical connection. 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: P1237 2007 Ford Fusion indicates Fuel Pump Secondary Circuit Fault.
Common causes: Common causes include Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) harness is open or shorted, Fuel Pump Driver Module (FPDM) circuit poor electrical connection.
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.

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Code Popularity 2,247

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 Jul 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1237 2007 Ford Fusion Description

Fuel Pump Driver Modules (FPDM) controls the voltage to the Fuel Pump in order to maintain proper fuel pressure over the full operating range of the engine. The P1237 code indicates the FPDM detected a fuel pump secondary circuit concern. The FPDM sends a message to the Powertrain Control Module (PCM) through the Fuel Pump Monitor (FPM) circuit indicating this concern was detected. The PCM sets the DTC when the message is received.

OBDII Code P1237 2007 Ford Fusion - Fuel Pump Secondary Circuit Fault - AutoCodes.com — P1237 2007 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P1237 2007 Ford Fusion?

Faulty Fuel Pump Driver Module (FPDM)
Fuel Pump Driver Module (FPDM) harness is open or shorted
Fuel Pump Driver Module (FPDM) circuit poor electrical connection
Faulty fuel pump

How to Fix the DTC P1237 2007 Ford Fusion?

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 P1237 2007 Ford Fusion 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 P1237 2007 Ford Fusion code?

Need more information on how to fix the P1237 2007 Ford Fusion code? Get Access to Factory Service Manuals

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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 P1237 2007 Ford Fusion Code

1. What are common symptoms of OBDII code P1237 on a 2007 Ford Fusion?

The common symptoms include stalling, rough running engine, difficulty starting the vehicle, and a noticeable decrease in fuel efficiency.

2. What does the OBDII code P1237 on a 2007 Ford Fusion indicate?

OBDII code P1237 indicates a Fuel Pump Secondary Circuit Fault in the vehicle's fuel system.

3. What are some possible causes of OBDII code P1237 on a 2007 Ford Fusion?

Possible causes include a faulty fuel pump driver module, damaged wiring or connectors in the fuel pump circuit, a failing fuel pump, or a problem with the fuel pump relay.

4. How can I diagnose the cause of OBDII code P1237 on my 2007 Ford Fusion?

You can diagnose the issue by checking the fuel pump driver module, inspecting the wiring and connectors for damage, testing the fuel pump's operation, and verifying the functionality of the fuel pump relay.

5. Can I still drive my 2007 Ford Fusion with OBDII code P1237?

It is not recommended to drive the vehicle with OBDII code P1237, as it can lead to potential fuel system issues and engine performance problems.

6. How can I repair OBDII code P1237 on a 2007 Ford Fusion?

To repair OBDII code P1237, you may need to replace the fuel pump driver module, repair any damaged wiring or connectors, replace the fuel pump if necessary, or troubleshoot and replace the fuel pump relay.

7. Is it safe to reset the OBDII code P1237 on my 2007 Ford Fusion without fixing the issue?

It is not recommended to simply reset the code without addressing the underlying issue, as the problem may persist and potentially lead to more serious issues with the vehicle's fuel system.

8. Will OBDII code P1237 on a 2007 Ford Fusion cause the check engine light to illuminate?

Yes, OBDII code P1237 will trigger the check engine light to illuminate on the dashboard of your 2007 Ford Fusion.

9. How much does it typically cost to repair OBDII code P1237 on a 2007 Ford Fusion?

The cost of repairing OBDII code P1237 can vary depending on the exact cause of the issue and the necessary repairs, but it may range from $200 to $800 or more, including parts and labor.

10. Can OBDII code P1237 on a 2007 Ford Fusion be prevented?

While some causes of OBDII code P1237 may be unavoidable, regular maintenance and inspections of the fuel system can help prevent issues that may trigger this fault code.