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P1651 2009 Ford Fusion Code - Power Steering Pressure Switch Input Fault

Quick Answer

The P1651 diagnostic trouble code (DTC) for a 2009 Ford Fusion indicates a Power Steering Pressure Switch Input Fault. Common causes include Faulty power steering pressure switch, Wiring or connection issues related to the pressure switch, Power steering system leaks or low fluid levels. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P1651 2009 Ford Fusion indicates Power Steering Pressure Switch Input Fault.
Common causes
Common causes include Faulty power steering pressure switch, Wiring or connection issues related to the pressure switch, Power steering system leaks or low fluid levels.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P1651 2009 Ford Fusion Description

The P1651 diagnostic trouble code (DTC) for a 2009 Ford Fusion indicates a Power Steering Pressure Switch Input Fault. This code is triggered when the power steering pressure switch, which is responsible for monitoring the pressure in the power steering system, sends an abnormal signal to the vehicle's engine control module (ECM). The power steering pressure switch is a crucial component that helps regulate the power steering system's operation, ensuring optimal performance and safety while driving.

OBDII Code P1651 2009 Ford Fusion - Power Steering Pressure Switch Input Fault
P1651 2009 Ford Fusion Code - Power Steering Pressure Switch Input Fault

Common Causes of P1651 2009 Ford Fusion

  1. Faulty power steering pressure switch
  2. Wiring or connection issues related to the pressure switch
  3. Power steering system leaks or low fluid levels
  4. ECM software or hardware issues
  5. Electrical system malfunctions

Symptoms of P1651 2009 Ford Fusion

  1. Stiff or unresponsive steering
  2. Erratic steering assist
  3. Dashboard warning light related to power steering
  4. Difficulty steering at low speeds
  5. Complete loss of power steering assistance

How to Fix P1651 2009 Ford Fusion

  1. Begin by diagnosing the specific cause of the Power Steering Pressure Switch Input Fault using a diagnostic scanner to retrieve the trouble codes and pinpoint the issue.
  2. Inspect the power steering pressure switch and its wiring for any visible damage or corrosion. Replace the pressure switch if necessary.
  3. Check the power steering system for leaks and ensure that fluid levels are adequate. Repair any leaks and top up the fluid as needed.
  4. Clear the DTC from the ECM's memory using the diagnostic scanner and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, further troubleshooting may be required to identify any underlying electrical or system issues that could be contributing to the fault.

Cost to Fix P1651 2009 Ford Fusion

The typical repair costs for addressing a Power Steering Pressure Switch Input Fault on a 2009 Ford Fusion can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing the power steering pressure switch and addressing any related issues such as fluid leaks or wiring problems can range from $150 to $400 in parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local repair shops for a more accurate estimate based on your specific circumstances.

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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 P1651 2009 Ford Fusion Code

1. What does OBDII code P1651 mean on a 2009 Ford Fusion?

P1651 indicates a Power Steering Pressure Switch Input Fault, meaning the system has detected an issue with the signal from the power steering pressure switch.

2. What are the common symptoms of P1651 in a 2009 Ford Fusion?

Common symptoms include a check engine light, potential loss of power steering assist, and rough idle or stalling during low-speed maneuvers.

3. What causes the P1651 code to appear on a 2009 Ford Fusion?

This code can be caused by a faulty power steering pressure switch, damaged wiring or connectors, or an issue with the powertrain control module (PCM).

4. Can I still drive my 2009 Ford Fusion with a P1651 code?

While the car may still be drivable, power steering performance could be affected, especially at low speeds, so it’s important to address the issue promptly.

5. How do I diagnose a P1651 code on a 2009 Ford Fusion?

Start by inspecting the power steering pressure switch, its wiring, and connectors for damage. Use a multimeter to check for proper voltage and continuity, and scan the PCM for additional codes.

6. How do I fix the P1651 code on a 2009 Ford Fusion?

Repairs may involve replacing the power steering pressure switch, repairing damaged wiring or connectors, or in rare cases, reprogramming or replacing the PCM.

7. How much does it cost to fix a P1651 code on a 2009 Ford Fusion?

Replacing the power steering pressure switch typically costs between $100 and $250, including parts and labor. Additional repairs may increase the cost.

8. Can a faulty power steering pressure switch cause engine stalling?

Yes, a malfunctioning power steering pressure switch can cause the engine to stall during low-speed maneuvers as it fails to inform the PCM to adjust idle speed.

9. Will clearing the P1651 code solve the problem on my 2009 Ford Fusion?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.

10. How can I prevent a P1651 code from occurring?

Regular maintenance, including checking the condition of wiring and components in the power steering system, can help prevent this code from appearing.

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