What is the electric power steering system warning light on a Toyota Yaris?
The electric power steering (EPS) warning light on a Toyota Yaris signals a fault in the EPS system; you may experience reduced or lost steering assist and should seek service as soon as safely possible.
What the warning light looks like on a Toyota Yaris
In most Yaris models, the EPS warning is shown as an amber steering wheel icon with an exclamation point or as a label like “EPS” or “Power Steering” on the instrument cluster. The icon may appear steady or flash, and a message can accompany the light on the multi-information display. A red version of the symbol, when it appears, indicates a more urgent fault requiring immediate attention. If the light behaves differently than expected (e.g., flashing while driving) treat it as a fault and stop safely if necessary.
Common causes of the EPS warning light
Several issues can trigger the EPS warning on a Yaris. The following list outlines the typical sources of an EPS fault, from most common electrical problems to component faults.
- Low or fluctuating battery voltage, or charging system issues that deprive the EPS controller of power
- Faulty EPS motor or steering rack, which can fail to provide assist
- Malfunctioning torque sensor or steering angle sensor that sends incorrect data to the EPS controller
- Software/fault in the EPS control module or a need for an ECU update
- Intermittent faults triggered by other vehicle systems (vehicle stability, ABS, or battery management) that temporarily disable EPS
Understanding these potential causes helps frame the diagnostic process. A dealer or qualified mechanic will typically perform a live data readout with OEM tools to pinpoint the exact fault code and repair needs.
What to do if the EPS warning light comes on
When the EPS light appears, safety should be your first priority. The steps below guide you through immediate actions and the path to a proper fix.
- Drive with caution and avoid aggressive steering; if the steering feels heavy or the assist is inconsistent, stop driving if it’s safe to do so
- Turn the ignition off and back on to see if the light resets, but do not rely on this as a fix if the warning returns
- Check for other warning lights (battery, ABS, or stability control) that could indicate a broader electrical issue
- Test the battery and charging system; a weak battery or failing alternator can cause EPS faults
- Inspect obvious electrical issues such as damaged fuses, loose connectors, or exposed wiring near the steering column or dashboard
- Have the vehicle scanned with the appropriate Toyota/OEM diagnostic tool to pull fault codes from the EPS system
- Proceed to a Toyota service center or qualified auto technician for a professional diagnosis and repair; do not delay if the light remains on or the steering feels unreliable
Responding promptly with a professional diagnosis is important because an EPS fault can range from a simple sensor recalibration to a failing motor or controller, any of which can affect steering safety. If the vehicle is under warranty or included in a service plan, contact your dealer for guidance and potential recalls or service campaigns.
Summary
The EPS warning light on a Toyota Yaris indicates a fault in the electric power steering system, which can reduce or remove steering assist. It can be caused by electrical issues, sensor faults, or problems with the EPS motor or control module. If the light appears, prioritize safe driving, inspect for obvious issues, and have the system diagnosed by a professional using OEM tools. Timely service can prevent loss of steering assistance and ensure the vehicle remains safe to operate.
What does it mean when the electric power steering light comes on?
This light, often represented by a steering wheel icon or the letters “EPS” (Electric Power Steering), indicates that there is an issue with your steering system. If your power steering light turns on unexpectedly, it doesn't always mean immediate danger, but it's a sign that your car should be inspected promptly.
Can I drive with an EPS warning light?
Otherwise, you should have your car checked over by a mechanic. We strongly advise against driving with a power steering warning light, as your car's handling and safety could be compromised. Instead, call your breakdown provider and arrange for your car to be towed to the nearest garage.
How expensive is it to fix electric power steering?
Electric power steering repair costs vary significantly depending on the specific issue, with minor fixes potentially costing $100–$300, while replacing major components like the EPS motor or full steering column can range from $300 to $1,550 or more. Factors like vehicle make and model, the specific part that needs replacement, and labor rates all influence the final price.
This video explains the cost of electric power steering repair and the factors that influence it: 1mTalkingTechTrendsYouTube · Jun 7, 2025
Cost breakdown by repair type
- Minor fixes: Simple issues like a sensor or small leak can sometimes be fixed for $100–$300.
- EPS Motor: If the electronic motor fails, replacement costs typically range from $300 to $800.
- Full Steering Column: Replacing the entire steering column is one of the more expensive repairs, with costs often falling between $530 and $1,550.
- Steering Rack: Replacing the steering rack can cost between $710 and $2,420 for most vehicles.
- Diagnostic Fees: Some shops charge a diagnostic fee, which can be around $200, to determine the exact problem.
Factors that affect the cost
- Vehicle Make and Model: The cost of parts varies significantly based on the vehicle. For example, dealer parts can be more expensive than aftermarket ones.
- Labor Costs: Labor can account for a significant portion of the total cost, especially for complex repairs like a steering column or rack replacement.
- Shop Location: Labor rates vary by geographic location, so getting quotes from different shops can be beneficial.
- Part vs. Labor: In many cases, labor costs can be higher than the price of the part itself.
- DIY vs. Professional: If you have the mechanical skill, doing the work yourself can save significant money on labor. However, professional help is recommended for more complex issues, and some repairs require specialized equipment or programming.
How to fix electric power steering EPS warning light?
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.
