P1237 2009 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 2009 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.
Code P1237 2009 Ford Fusion Description
What are the Possible Causes of the DTC P1237 2009 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 2009 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 2009 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.
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Frequently Asked Questions about P1237 2009 Ford Fusion Code
1. What does the P1237 code mean on a 2009 Ford Fusion?
The P1237 code indicates a Fuel Pump Secondary Circuit Fault, meaning there is a problem with the electrical circuit controlling the fuel pump.
2. What are the common symptoms of the P1237 code on a Ford Fusion?
Common symptoms include engine stalling, difficulty starting, poor engine performance, and reduced fuel efficiency.
3. What causes the P1237 code to appear on a 2009 Ford Fusion?
Possible causes include a faulty fuel pump driver module, damaged wiring or connectors in the fuel pump circuit, or a failing fuel pump.
4. Can a bad fuel pump trigger the P1237 code?
Yes, a failing or defective fuel pump can disrupt the secondary circuit and cause the P1237 code to be stored.
5. How do you diagnose the P1237 code on a Ford Fusion?
Diagnosis involves checking the fuel pump driver module, inspecting the wiring and connectors for damage, and testing the fuel pump for proper operation.
6. Can I drive my 2009 Ford Fusion with the P1237 code?
It’s not recommended, as the issue can lead to stalling or difficulty starting, which may leave you stranded.
7. How is the P1237 code fixed on a Ford Fusion?
Repairs may include replacing the fuel pump driver module, repairing damaged wiring or connectors, or replacing the fuel pump if necessary.
8. Where is the fuel pump driver module located on a 2009 Ford Fusion?
The fuel pump driver module is typically located near the fuel tank or under the rear seat, depending on the model.
9. How much does it cost to fix the P1237 code on a Ford Fusion?
The repair cost can vary, but replacing a fuel pump driver module typically ranges from $200 to $500, depending on labor rates and parts.
10. Can a faulty fuel pump relay cause the P1237 code?
Yes, a faulty fuel pump relay can interrupt the secondary circuit and trigger the P1237 code. It should be tested during diagnosis.
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