AutoCodes – Ford – P1651 2009 Ford Fusion

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

Quick Answer

The Powertrain Control Module (PCM) counts the number of vehicle speed transitions from 0 to a calibrated speed. Common causes include Vehicle towed with engine running, Faulty Power Steering Pressure (PSP), Power Steering Pressure (PSP) harness is open or shorted. 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 Vehicle towed with engine running, Faulty Power Steering Pressure (PSP), Power Steering Pressure (PSP) harness is open or shorted.
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.

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Code Popularity 3,400

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 05, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1651 2009 Ford Fusion Description

The Powertrain Control Module (PCM) counts the number of vehicle speed transitions from 0 to a calibrated speed. After a calibrated number of speed transitions, the PCM expects the Power Steering Pressure (PSP) input to change. This DTC is set if the transition is not detected.

OBDII Code P1651 2009 Ford Fusion - Power Steering Pressure Switch Input Fault - AutoCodes.com — P1651 2009 Ford Fusion Code - Power Steering Pressure Switch Input Fault

What does this mean?

What are the Possible Causes of the DTC P1651 2009 Ford Fusion?

Vehicle towed with engine running
Faulty Power Steering Pressure (PSP)
Power Steering Pressure (PSP) harness is open or shorted
Power Steering Pressure (PSP) circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1651 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 P1651 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.

Need more information about the P1651 2009 Ford Fusion code?

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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 itâ€™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.