How To Fix Power Steering Assist Fault Ford Focus

How to Fix a Power Steering Assist Fault on a Ford Focus

Experiencing a power steering assist fault on your Ford Focus can be a scary and frustrating experience. Suddenly, your steering becomes incredibly stiff and difficult to manage, especially at low speeds. This comprehensive guide will walk you through potential causes and troubleshooting steps to help you fix this problem. Remember, safety is paramount. If you're uncomfortable performing these checks yourself, take your vehicle to a qualified mechanic.

Understanding the Power Steering Assist System

Before diving into troubleshooting, let's briefly understand how the power steering assist system works in a Ford Focus. This system uses an electric motor to assist the driver in turning the steering wheel. A fault can stem from various components within this system.

Common Causes of Power Steering Assist Fault

Several issues can trigger a power steering assist fault message on your Ford Focus dashboard. Here are some of the most frequent culprits:

1. Low Power Steering Fluid (If Applicable):

While many modern Ford Focus models use electric power steering, some older models might still use hydraulic systems. Check your power steering fluid level. If it's low, topping it off (with the correct fluid type!) might resolve the issue. However, a low fluid level often indicates a leak – requiring further investigation.

2. Faulty Electric Power Steering (EPS) Motor:

The EPS motor is the heart of the electric power steering system. A malfunctioning EPS motor is a common cause of power steering assist faults. This often requires professional diagnosis and replacement as it's an intricate part.

3. Electrical Problems:

Problems within the vehicle's electrical system can interrupt the EPS motor's function. This could involve:

• Faulty Wiring: Damaged or corroded wiring can prevent proper communication between the EPS motor and the vehicle's computer.
• Blown Fuse: Check the fuse box for a blown fuse related to the power steering system. Replacing a blown fuse is a simple fix, but the underlying cause of the blown fuse needs investigation.
• Faulty Sensor: Various sensors monitor the steering system's operation. A faulty sensor can send incorrect information to the computer, leading to the fault.

4. Software Glitch:

Sometimes, a simple software glitch in the vehicle's computer can trigger the power steering assist fault. A diagnostic scan by a mechanic can identify and often resolve software problems.

5. Steering Column Issues:

Rarely, problems within the steering column itself can cause the fault. This usually requires professional diagnosis and repair.

Troubleshooting Steps

1. Check the Obvious: Start by ensuring nothing is obstructing your steering wheel or preventing it from turning freely. This might sound simple, but it's a good first step.

2. Check the Power Steering Fluid (If Applicable): As mentioned earlier, check the fluid level in your hydraulic power steering system (if your Ford Focus uses one).

3. Inspect for Obvious Wiring Damage: Visually inspect the wiring harness connected to the EPS motor for any signs of damage, corrosion, or disconnections.

4. Check the Fuses: Locate the fuse box and check for any blown fuses related to the power steering system. Consult your owner's manual for fuse box diagrams.

5. Diagnostic Scan: The most effective way to diagnose the problem is to use a diagnostic scan tool. A mechanic can plug this into your vehicle's OBD-II port to retrieve diagnostic trouble codes (DTCs) that pinpoint the problem's source.

When to Seek Professional Help

If you've tried the basic troubleshooting steps and still experience the power steering assist fault, it's crucial to take your Ford Focus to a qualified mechanic or dealership. They have the specialized tools and expertise to properly diagnose and repair the issue. Ignoring the problem could lead to further damage or even create a dangerous driving situation.

Remember to always prioritize your safety. Driving with a faulty power steering system can be challenging and potentially dangerous. Seek professional help if necessary.