The fault is not simply a resetable blink of a switch—you must diagnose the underlying cause (battery/electrical, sensor, or hydraulic pump) and perform the appropriate reset or relearn. If the warning remains after basic checks, professional diagnosis is typically required.
On the 2007 Focus, power steering could be hydraulic with electric assist or, in some markets, early electric assist. The exact remedy depends on which system your car uses. The steps below outline both paths, plus general safety precautions and when to seek a dealer or qualified shop.
Understanding what triggers the fault
A Power Steering Assist Fault warning can appear for several reasons, including a weak battery or charging system, faulty steering angle sensor or EPS module, damaged wiring or connectors, low hydraulic fluid (for hydraulic systems), pump or belt wear, or CAN-bus communication issues. Because many of these causes affect safety-critical steering, it’s important to verify electrical health and obvious mechanical issues before attempting a reset.
To prepare for a reset, perform these checks to determine whether the problem is electrical, hydraulic, or mechanical. The list below helps you identify likely culprits before attempting a relearn or reset procedure.
- Test the 12-volt battery and charging system. Battery voltage should be around 12.6 V with the engine off and 13.8–14.8 V when running. A weak battery or failing alternator can trigger EPS faults.
- Inspect power steering wiring and connectors, especially around the steering column and the EPS control module. Look for corrosion, loose pins, or damaged insulation.
- Check fuses and relays related to the power steering system as noted in the owner’s manual or fuse box diagram.
- If the Focus uses hydraulic power steering, check the power steering fluid level and look for leaks. Use the manufacturer-recommended fluid; never mix different types.
- Inspect the serpentine belt driving the power steering pump (if hydraulic). A worn or loose belt can reduce pump assist and trigger warnings.
- Read stored fault codes with an OBD-II scanner to identify whether the issue points to EPS components, steering angle sensor, CAN bus, or pump.
- Look for any recent service work that might have disturbed connectors or sensors, especially near the steering column or underdash area.
Correcting these issues often resolves the fault without needing a formal EPS relearn, but persistent codes usually require a relearn procedure or component service.
Reset procedures: hydraulic vs. electric power steering
The exact reset approach depends on whether your 2007 Focus uses hydraulic power steering with electric assist or an early electric power steering system. The following sections outline typical procedures and practical checks. If in doubt, consult a professional to confirm your system type and perform any relearn with the correct tool.
Hydraulic power steering (HPS) with electric assist
These steps are intended to refresh the hydraulic portion and confirm fluid and belt integrity. They do not replace a faulty pump or leaked system, which will require component replacement.
- Park on a level surface, engine off, and apply the parking brake. Open the hood to verify fluid level and condition if accessible.
- Start the engine and check the power steering fluid level. Top up with the manufacturer-recommended fluid if the level is low and check for leaks around the pump and hoses.
- With the engine idling, slowly turn the steering wheel from full left lock to full right lock 5–10 times to bleed air and relieve system pressure while the pump runs.
- Turn off the engine, wait a few seconds, then restart. Take a short test drive at low speed to verify the steering assist feels normal and the warning light does not reappear.
- If the warning light returns or the assist feels inconsistent, the issue is likely a pump, reservoir, pressure sensor, or hose problem. A professional diagnosis is recommended.
Concluding note for hydraulic systems: If the light stays off after fluid checks and cycling, the reset is considered successful. If the fault returns, definitively address any leaks or pump issues before driving aggressively.
Electric power steering (EPS)
Electric power steering often requires a software relearn or module reset, which may require dealer tools. The following steps are common for attempting a safe reset in a non-dealer setting, but if the light persists, a professional scan with OEM software is advised.
- With the ignition off, disconnect the negative battery terminal. Wait 10–15 minutes to allow the EPS module to power down completely.
- Reconnect the battery and turn the ignition to ON (do not start the engine). Wait for a few seconds as the EPS system initializes.
- Start the engine and slowly turn the steering wheel from the full left lock to the full right lock several times at idle to allow the EPS controller to relearn the steering angle and motor limits.
- Drive at a safe speed to confirm normal assist and verify the warning light remains off. If the warning reappears, a diagnostic tool with the Ford IDS or equivalent may be required to reset or recalibrate the steering angle sensor and EPS motor.
Important caveat: In many Ford Focus models from this era, the EPS relearn or calibration logic is stored in the steering angle sensor and EPS control module. If a fault is present, clearing the codes without repairing the underlying issue may result in an immediate reappearance of the warning. A dealer or qualified automotive technician can perform a precise relearn or replacement if necessary.
Safety considerations and when to seek help
Power steering faults can affect steering effort and vehicle control, especially at low speeds. If you experience stiff, unpredictable, or no steering assistance while driving, avoid high-speed maneuvers and seek professional assistance promptly. Do not rely on a DIY fix if the EPS warning persists after basic checks.
Summary
Resetting a power steering assist fault on a 2007 Ford Focus hinges on identifying the root cause—electrical health, steering sensors, CAN communication, or hydraulic system integrity—and then applying the appropriate reset or relearn procedure. Begin with a battery and charging check, inspect wiring and fluid or belt as applicable, read fault codes, and perform a safe relearn if the system supports it. If the warning remains after these steps, or if you notice abnormal steering behavior, consult a qualified technician to diagnose and repair the EPS system, as driving with a persistent fault can compromise steering control.
How to reset power steering assist fault on Ford Focus?
And wait 5 seconds. And return the steering wheel to. Center. Turn off the car. Turn it back on. And test to see that your power steering feels much more fluid.
How do you reset electric power steering?
5 seconds. Turn the steering wheel to the full left lock position and apply force for approximately. 5 seconds. Return the steering wheel to the straightforward. Position turn off the ignition.
How do you fix the power steering assist fault?
Then open driver's. Side door and wait for 30 seconds close the door and start your vehicle. This will reset all electric components of your vehicle. And remove error message from the dashboard.
What does steering assist fault mean on a Ford?
Replace a Bad Steering Angle Sensor
There's a chance this sensor might go bad at some point and cause major issues with your power steering system. This will result in the Power Steering Assist Fault message appearing in your Ford Explorer.