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P1237 2011 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

Quick Answer

The P1237 code for a 2011 Ford Fusion indicates a Fuel Pump Secondary Circuit Fault. Common causes include Faulty fuel pump relay, Wiring issue in the fuel pump circuit, Malfunctioning fuel pump control module. 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 2011 Ford Fusion indicates Fuel Pump Secondary Circuit Fault.
Common causes
Common causes include Faulty fuel pump relay, Wiring issue in the fuel pump circuit, Malfunctioning fuel pump control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P1237 2011 Ford Fusion Description

The P1237 code for a 2011 Ford Fusion indicates a Fuel Pump Secondary Circuit Fault. This means that there is an issue with the secondary circuit of the fuel pump, which is responsible for delivering fuel from the tank to the engine. The fuel pump is a crucial component of the vehicle's fuel system, and any fault in its circuit can lead to significant performance issues.

OBDII Code P1237 2011 Ford Fusion - Fuel Pump Secondary Circuit Fault
P1237 2011 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

Common Causes of P1237 2011 Ford Fusion

  1. Faulty fuel pump relay
  2. Wiring issue in the fuel pump circuit
  3. Malfunctioning fuel pump control module
  4. Problem with the fuel pump itself

Symptoms of P1237 2011 Ford Fusion

  1. Rough idling
  2. Stalling
  3. Hesitation during acceleration
  4. Difficulty starting the engine

How to Fix P1237 2011 Ford Fusion

  1. Diagnose the issue by checking the fuel pump relay, wiring, control module, and fuel pump for any faults.
  2. Replace the faulty component, whether it is the relay, wiring, control module, or fuel pump.
  3. Clear the diagnostic trouble codes from the vehicle's computer.
  4. Test drive the vehicle to ensure that the issue has been resolved.
  5. If the problem persists, further troubleshooting may be necessary to identify any other underlying issues.

Cost to Fix P1237 2011 Ford Fusion

The typical repair costs for a Fuel Pump Secondary Circuit Fault can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for this issue can range from $200 to $600. It is important to note that the diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

When is the Code Detected?

Fuel pump driver module has detected a fault in the fuel pump secondary circuit

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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 2011 Ford Fusion Code

1. What does the P1237 code mean on a 2011 Ford Fusion?

The P1237 code indicates a Fuel Pump Secondary Circuit Fault, meaning the PCM has detected an issue in the fuel pump control system.

2. What are the common symptoms of the P1237 code in a 2011 Ford Fusion?

Symptoms include engine stalling, difficulty starting, reduced power, or a no-start condition.

3. What causes the P1237 code to appear on a 2011 Ford Fusion?

Common causes include a faulty fuel pump driver module, damaged wiring or connectors, or a failing fuel pump.

4. Can I drive my 2011 Ford Fusion with a P1237 code?

Driving with a P1237 code is not recommended as it can lead to engine stalling or failure to start, potentially leaving you stranded.

5. How do you diagnose the P1237 code in a 2011 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. How do you fix the P1237 code on a 2011 Ford Fusion?

Repairs may include replacing the fuel pump driver module, repairing damaged wiring or connectors, or replacing the fuel pump if it's faulty.

7. Where is the fuel pump driver module located in a 2011 Ford Fusion?

The fuel pump driver module is typically located near the fuel tank or mounted on the vehicle frame.

8. Can a blown fuse cause the P1237 code on a 2011 Ford Fusion?

Yes, a blown fuse in the fuel pump circuit can trigger the P1237 code and should be checked during diagnostics.

9. How much does it cost to fix a P1237 code on a 2011 Ford Fusion?

Repair costs vary but may range from $150 to $600 depending on whether the fuel pump driver module, fuel pump, or wiring needs replacement.

10. Will clearing the P1237 code fix the issue on a 2011 Ford Fusion?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return.

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