Ford Fusion Power Steering Assist Fault (Causes and How to Fix)

If you’ve just noticed the Power Steering Assist Fault message on your Ford Fusion and you’re not sure how to go about it, this post is for you.

Power steering assist fault on your Ford Fusion is a problem with the power steering system that causes the steering wheel to feel heavy or stiff, making it difficult to steer the vehicle. It is caused by a faulty Power Steering Control Module (PSCM), damaged wiring harness, or low battery voltage. It can be fixed by repairing or replacing the damaged components.

If left unchecked, this issue poses a serious risk to drivers and passengers on the road. This article will discuss the potential causes of the Ford Fusion Power Steering Assist Fault and offer solutions to help you fix the problem and get back on the road safely.

Overview of the Ford Fusion Power Steering Assist System

In the Ford Fusion, Power Steering Assist is a feature that uses an electric motor to provide power assistance to the steering system. This feature helps to reduce the effort required to turn the steering wheel, especially at low speeds or when parking.

The system is controlled by a Power Steering Control Module (PSCM), which uses sensors to monitor the vehicle’s speed, steering angle, and other parameters to adjust the electric motor’s level of assistance.

However, a fault with the PSCM or other components of the system leads to the Power Steering Assist Fault issue, which makes steering difficult or unsafe.

Causes of the Ford Fusion Power Steering Assist Fault

If you’re experiencing the Ford Fusion Power Steering Assist Fault issue, you may wonder what could cause this frustrating problem. Several factors contribute to this issue. The following are the causes of the Ford Fusion Power Steering Assist Fault:

• Faulty Power Steering Control Module (Pscm): PSCM is the main component that controls the power steering assist system. If it fails or malfunctions, it causes the power steering assist fault issue.
• Damaged Wiring Harness: The harness that connects the PSCM to the other components of the power steering system becomes damaged or worn over time, leading to a loss of power or signal.
• Low Battery Voltage: power steering assist system relies on a healthy battery to provide the necessary power to the electric motor. If the battery is weak or low, that causes the system to malfunction.
• Other Possible Causes: Other potential causes of the Ford Fusion Power Steering Assist Fault issue includes a faulty torque sensor, a damaged steering gear, or a malfunctioning electric motor.

Symptoms of the Ford Fusion Power Steering Assist Fault

Dealing with the Ford Fusion Power Steering Assist Fault issue is a frustrating and even dangerous experience. If you suspect that your vehicle is affected by this problem, it is important to be aware of the common symptoms. Below are the symptoms of the Ford Fusion power steering assist fault:

• Difficulty in Steering the Vehicle: One of the most common symptoms of this issue is a noticeable increase in the effort required to turn the steering wheel, especially at low speeds.
• Steering Wheel Feels Heavy Or Stiff: If the power steering assist system is not working properly, the steering wheel will feel heavy or stiff, making it difficult to turn.
• Steering Wheel Vibrates Or Shakes: A malfunctioning power steering assist system also causes the steering wheel to vibrate or shake, especially when the vehicle is idling or driving at low speeds.
• Power Steering Assist Fault Warning Message On the Dashboard: The vehicle’s onboard computer system detects the power steering assist issue and displays a warning message on the dashboard, such as “Power Steering Assist Fault” or “Service Power Steering Now.”

Troubleshooting the Ford Fusion Power Steering Assist Fault

Experiencing the Ford Fusion Power Steering Assist Fault is a daunting and dangerous problem, but fortunately, solutions are available. In this part, we will explore some effective ways to fix the power steering assist fault issue:

• Check the Battery: The power steering assist system relies on a healthy battery to function properly. Weak or low batteries cause the system to malfunction. Check the battery voltage and replace it if necessary.
• Inspect the Wiring Harness: Damaged or worn wiring harnesses cause a loss of power or signal to the power steering assist system. Inspect the wiring harness and repair or replace it as needed.
• Replace the Power Steering Control Module (PSCM):  Faulty or malfunctioning PSCM cause the power steering assists fault issue. Replace the PSCM with a new one to fix the issue.
• Replace the Electric Motor: If the electric motor that drives the power steering assist system is damaged or worn out, it must be replaced.
• Repair Or Replace the Steering Gear: A damaged steering gear also causes the power steering assist fault issue. Inspect and repair or replace the steering gear as needed.
• Perform Regular Maintenance: Regular maintenance, such as flushing and replacing the power steering fluid, help keep the power steering assist system functioning properly.

Tips to Prevent Ford Fusion Power Steering Assist Fault

Dealing with the Ford Fusion Power Steering Assist Fault issue is a frustrating experience. You can take these steps to prevent this problem from occurring:

• Regular Maintenance: Regular maintenance prevents many problems, including the power steering assists fault issue. Follow the recommended maintenance schedule in your vehicle owner’s manual, and ensure the power steering system is inspected and serviced regularly.
• Keep an Eye On Warning Signs: Pay attention to any warning signs, such as strange noises or difficulty turning the steering wheel, and have them promptly inspected by a qualified mechanic.
• Avoid Overloading the Vehicle: Overloading your Ford Fusion places excessive strain on the power steering system, causing it to malfunction. Be mindful of the vehicle’s weight limits and avoid carrying more than the recommended weight.
• Check the Power Steering Fluid: Low power steering fluid levels fail the power steering assist system. Regularly check the power steering fluid level and top it up if needed.
• Drive Safely: Safe driving practices prevent accidents that damage the power steering system, such as collisions or hitting potholes or curbs.

When to Seek Professional Help

Seeking professional help from a qualified mechanic is essential when dealing with the Ford Fusion Power Steering Assist Fault issue. The power steering system is a complex and integral vehicle part. Attempting to repair it without proper knowledge and tools is dangerous and further damages the vehicle.

Qualified mechanics have the necessary training and experience to diagnose the problem accurately and make the necessary repairs or replacements. They also have access to specialized tools and equipment to safely and effectively work on the power steering system safely and effectively.

Some power steering system repair requires specialized knowledge and skills, such as programming or calibrating the PSCM after replacement. Qualified mechanics will have the expertise to complete these tasks correctly, ensuring the power steering system operates correctly and safely.

Final Words

The Ford Fusion Power Steering Assist Fault is a frustrating and even dangerous problem, but fortunately, there are ways to address it. Understanding the causes and symptoms of this issue will help you take action to prevent it from occurring and address it promptly if it does. 

From basic maintenance tasks to more advanced repairs, various solutions are available. Remember to maintain your vehicle and pay attention to warning signs regularly, and always have your vehicle inspected by a qualified mechanic to ensure safe and smooth operation.

This guide describes all aspects of the Ford Fusion Power Steering Assist Fault causes and how to fix them. By taking these steps, you can address the power steering assist fault issue and enjoy worry-free driving in your Ford Fusion.